Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #define _GNU_SOURCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <fcntl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <stdio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <stdbool.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <sys/stat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <sys/syscall.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <sys/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <sys/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <unistd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "log.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "timens.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define OFFSET (36000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int main(int argc, char *argv[])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct timespec now, tst;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	int status, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	pid_t pid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	if (argc > 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		if (sscanf(argv[1], "%ld", &now.tv_sec) != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 			return pr_perror("sscanf");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 			_gettime(CLOCK_MONOTONIC, &tst, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 			if (abs(tst.tv_sec - now.tv_sec) > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 				return pr_fail("%ld %ld\n", now.tv_sec, tst.tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	nscheck();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	ksft_set_plan(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	clock_gettime(CLOCK_MONOTONIC, &now);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	if (unshare_timens())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	if (_settime(CLOCK_MONOTONIC, OFFSET))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 		_gettime(CLOCK_MONOTONIC, &tst, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 		if (abs(tst.tv_sec - now.tv_sec) > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 			return pr_fail("%ld %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 					now.tv_sec, tst.tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	if (argc > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	pid = fork();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	if (pid < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 		return pr_perror("fork");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	if (pid == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 		char now_str[64];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		char *cargv[] = {"exec", now_str, NULL};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 		char *cenv[] = {NULL};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 		/* Check that a child process is in the new timens. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 		for (i = 0; i < 2; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 			_gettime(CLOCK_MONOTONIC, &tst, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 			if (abs(tst.tv_sec - now.tv_sec - OFFSET) > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 				return pr_fail("%ld %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 						now.tv_sec + OFFSET, tst.tv_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 		/* Check for proper vvar offsets after execve. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 		snprintf(now_str, sizeof(now_str), "%ld", now.tv_sec + OFFSET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 		execve("/proc/self/exe", cargv, cenv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 		return pr_perror("execve");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 	if (waitpid(pid, &status, 0) != pid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 		return pr_perror("waitpid");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) 	if (status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 		ksft_exit_fail();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 	ksft_test_result_pass("exec\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 	ksft_exit_pass();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }