| 1 | |
| 2 | #define _GNU_SOURCE
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| 3 | #include <errno.h>
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| 4 | #include <fcntl.h>
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| 5 | #include <sched.h>
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| 6 | #include <stdio.h>
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| 7 | #include <stdbool.h>
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| 8 | #include <sys/stat.h>
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| 9 | #include <sys/syscall.h>
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| 10 | #include <sys/types.h>
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| 11 | #include <sys/wait.h>
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| 12 | #include <time.h>
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| 13 | #include <unistd.h>
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| 14 | #include <string.h>
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| 15 |
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| 16 | #include "log.h"
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| 17 | #include "timens.h"
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| 18 |
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| 19 | #define OFFSET (36000)
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| 20 |
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| 21 | int main(int argc, char *argv[])
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| 22 | {
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| 23 | struct timespec now, tst;
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| 24 | int status, i;
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| 25 | pid_t pid;
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| 26 |
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| 27 | if (argc > 1) {
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| 28 | if (sscanf(argv[1], "%ld", &now.tv_sec) != 1)
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| 29 | return pr_perror("sscanf");
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| 30 |
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| 31 | for (i = 0; i < 2; i++) {
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| 32 | _gettime(CLOCK_MONOTONIC, &tst, i);
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| 33 | if (labs(tst.tv_sec - now.tv_sec) > 5)
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| 34 | return pr_fail("%ld %ld\n", now.tv_sec, tst.tv_sec);
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| 35 | }
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| 36 | return 0;
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| 37 | }
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| 38 |
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| 39 | ksft_print_header();
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| 40 |
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| 41 | nscheck();
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| 42 |
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| 43 | ksft_set_plan(1);
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| 44 |
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| 45 | clock_gettime(CLOCK_MONOTONIC, &now);
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| 46 |
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| 47 | if (unshare_timens())
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| 48 | return 1;
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| 49 |
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| 50 | if (_settime(CLOCK_MONOTONIC, OFFSET))
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| 51 | return 1;
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| 52 |
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| 53 | for (i = 0; i < 2; i++) {
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| 54 | _gettime(CLOCK_MONOTONIC, &tst, i);
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| 55 | if (labs(tst.tv_sec - now.tv_sec) > 5)
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| 56 | return pr_fail("%ld %ld\n",
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| 57 | now.tv_sec, tst.tv_sec);
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| 58 | }
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| 59 |
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| 60 | if (argc > 1)
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| 61 | return 0;
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| 62 |
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| 63 | pid = fork();
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| 64 | if (pid < 0)
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| 65 | return pr_perror("fork");
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| 66 |
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| 67 | if (pid == 0) {
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| 68 | char now_str[64];
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| 69 | char *cargv[] = {"exec", now_str, NULL};
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| 70 | char *cenv[] = {NULL};
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| 71 |
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| 72 |
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| 73 | for (i = 0; i < 2; i++) {
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| 74 | _gettime(CLOCK_MONOTONIC, &tst, i);
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| 75 | if (labs(tst.tv_sec - now.tv_sec - OFFSET) > 5)
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| 76 | return pr_fail("%ld %ld\n",
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| 77 | now.tv_sec + OFFSET, tst.tv_sec);
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| 78 | }
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| 79 |
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| 80 |
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| 81 | snprintf(now_str, sizeof(now_str), "%ld", now.tv_sec + OFFSET);
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| 82 | execve("/proc/self/exe", cargv, cenv);
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| 83 | return pr_perror("execve");
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| 84 | }
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| 85 |
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| 86 | if (waitpid(pid, &status, 0) != pid)
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| 87 | return pr_perror("waitpid");
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| 88 |
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| 89 | if (status)
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| 90 | ksft_exit_fail();
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| 91 |
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| 92 | ksft_test_result_pass("exec\n");
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| 93 | ksft_exit_pass();
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| 94 | return 0;
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| 95 | }
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