1 // SPDX-License-Identifier: GPL-2.0-or-later
15  * NOTE: FAN_REPORT_PIDFD support was added in v5.15-rc1 in af579beb666a
20 #include <stdio.h>
21 #include <ctype.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include "tst_test.h"
25 #include "tst_safe_stdio.h"
26 #include "lapi/pidfd_open.h"
29 #include "fanotify.h"
39 	int pid;  member
72 	SAFE_FILE_LINES_SCANF(fdinfo_path, "pos: %d", &pidfd_fdinfo->pos);  in read_pidfd_fdinfo()
73 	SAFE_FILE_LINES_SCANF(fdinfo_path, "flags: %d", &pidfd_fdinfo->flags);  in read_pidfd_fdinfo()
74 	SAFE_FILE_LINES_SCANF(fdinfo_path, "mnt_id: %d", &pidfd_fdinfo->mnt_id);  in read_pidfd_fdinfo()
75 	SAFE_FILE_LINES_SCANF(fdinfo_path, "Pid: %d", &pidfd_fdinfo->pid);  in read_pidfd_fdinfo()
76 	SAFE_FILE_LINES_SCANF(fdinfo_path, "NSpid: %d", &pidfd_fdinfo->ns_pid);  in read_pidfd_fdinfo()
147 	tst_res(TINFO, "Test #%d: %s", num, tc->name);  in do_test()
154 	if (tc->fork)  in do_test()
176 		if (info->hdr.info_type != FAN_EVENT_INFO_TYPE_PIDFD) {  in do_test()
181 				info->hdr.info_type);  in do_test()
184 		} else if (info->hdr.len !=  in do_test()
190 				info->hdr.len);  in do_test()
199 		if (info->pidfd < 0 && !tc->want_pidfd_err) {  in do_test()
201 				"pidfd creation failed for pid: %u with pidfd error value "  in do_test()
203 				(unsigned int)event->pid,  in do_test()
204 				info->pidfd);  in do_test()
206 		} else if (tc->want_pidfd_err &&  in do_test()
207 			   info->pidfd != tc->want_pidfd_err) {  in do_test()
209 				"pidfd set to an unexpected error: %d for pid: %u",  in do_test()
210 				info->pidfd,  in do_test()
211 				(unsigned int)event->pid);  in do_test()
213 		} else if (tc->want_pidfd_err &&  in do_test()
214 			   info->pidfd == tc->want_pidfd_err) {  in do_test()
216 				"pid: %u terminated before pidfd was created, "  in do_test()
218 				(unsigned int)event->pid,  in do_test()
227 		event_pidfd_fdinfo = read_pidfd_fdinfo(info->pidfd);  in do_test()
231 				"describing pid: %u failed",  in do_test()
232 				info->pidfd,  in do_test()
233 				(unsigned int)event->pid);  in do_test()
235 		} else if (event_pidfd_fdinfo->pid != event->pid) {  in do_test()
237 				"pidfd provided for incorrect pid "  in do_test()
238 				"(expected pidfd for pid: %u, got pidfd for "  in do_test()
239 				"pid: %u)",  in do_test()
240 				(unsigned int)event->pid,  in do_test()
241 				(unsigned int)event_pidfd_fdinfo->pid);  in do_test()
248 				"pid: %d, ns_pid: %d, got pos: %d, "  in do_test()
249 				"flags: %x, mnt_id: %d, pid: %d, ns_pid: %d",  in do_test()
250 				self_pidfd_fdinfo->pos,  in do_test()
251 				self_pidfd_fdinfo->flags,  in do_test()
252 				self_pidfd_fdinfo->mnt_id,  in do_test()
253 				self_pidfd_fdinfo->pid,  in do_test()
254 				self_pidfd_fdinfo->ns_pid,  in do_test()
255 				event_pidfd_fdinfo->pos,  in do_test()
256 				event_pidfd_fdinfo->flags,  in do_test()
257 				event_pidfd_fdinfo->mnt_id,  in do_test()
258 				event_pidfd_fdinfo->pid,  in do_test()
259 				event_pidfd_fdinfo->ns_pid);  in do_test()
264 				"mask: %lld, pid: %u, fd: %d, "  in do_test()
266 				(unsigned long long)event->mask,  in do_test()
267 				(unsigned int)event->pid,  in do_test()
268 				event->fd,  in do_test()
269 				info->pidfd,  in do_test()
270 				info->hdr.info_type,  in do_test()
271 				info->hdr.len);  in do_test()
275 		i += event->event_len;  in do_test()
276 		if (event->fd >= 0)  in do_test()
277 			SAFE_CLOSE(event->fd);  in do_test()
279 		if (info && info->pidfd >= 0)  in do_test()
280 			SAFE_CLOSE(info->pidfd);  in do_test()