97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2016 Fujitsu Ltd.
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* Author: Xiao Yang <yangx.jy@cn.fujitsu.com>
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*/
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/*\
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* [Description]
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*
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* Verify that epoll_ctl() fails with:
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*
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* - EBADF if epfd is an invalid fd.
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* - EPERM if fd does not support epoll.
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* - EBADF if fd is an invalid fd.
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* - EINVAL if op is not supported.
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* - EINVAL if fd is the same as epfd.
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* - EINVAL if events is NULL.
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* - ENOENT if fd is not registered with EPOLL_CTL_DEL.
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* - ENOENT if fd is not registered with EPOLL_CTL_MOD.
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* - EEXIST if fd is already registered with EPOLL_CTL_ADD.
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*/
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#include <poll.h>
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#include <sys/epoll.h>
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#include "tst_test.h"
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static int epfd;
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static int fd[2], unsupported_fd;
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static int inv = -1;
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static struct epoll_event events[2] = {
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{.events = EPOLLIN},
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{.events = EPOLLOUT},
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};
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static struct testcase {
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int *epfd;
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int opt;
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int *fd;
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struct epoll_event *event;
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int exp_err;
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const char *desc;
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} tc[] = {
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{&inv, EPOLL_CTL_ADD, &fd[1], &events[1], EBADF, "epfd is an invalid fd"},
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{&epfd, EPOLL_CTL_ADD, &unsupported_fd, &events[1], EPERM, "fd does not support epoll"},
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{&epfd, EPOLL_CTL_ADD, &inv, &events[1], EBADF, "fd is an invalid fd"},
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{&epfd, -1, &fd[1], &events[1], EINVAL, "op is not supported"},
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{&epfd, EPOLL_CTL_ADD, &epfd, &events[1], EINVAL, "fd is the same as epfd"},
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{&epfd, EPOLL_CTL_ADD, &fd[1], NULL, EFAULT, "events is NULL"},
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{&epfd, EPOLL_CTL_DEL, &fd[1], &events[1], ENOENT, "fd is not registered with EPOLL_CTL_DEL"},
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{&epfd, EPOLL_CTL_MOD, &fd[1], &events[1], ENOENT, "fd is not registered with EPOLL_CTL_MOD"},
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{&epfd, EPOLL_CTL_ADD, &fd[0], &events[0], EEXIST, "fd is already registered with EPOLL_CTL_ADD"}
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};
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static void setup(void)
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{
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unsupported_fd = SAFE_OPEN(".", O_RDONLY|O_DIRECTORY, 0);
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epfd = epoll_create(2);
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if (epfd == -1)
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tst_brk(TBROK | TERRNO, "fail to create epoll instance");
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SAFE_PIPE(fd);
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events[0].data.fd = fd[0];
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events[1].data.fd = fd[1];
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if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd[0], &events[0]))
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tst_brk(TBROK | TERRNO, "epoll_clt(..., EPOLL_CTL_ADD, ...)");
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}
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static void cleanup(void)
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{
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if (epfd)
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SAFE_CLOSE(epfd);
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if (fd[0])
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SAFE_CLOSE(fd[0]);
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if (fd[1])
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SAFE_CLOSE(fd[1]);
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}
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static void verify_epoll_ctl(unsigned int n)
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{
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TST_EXP_FAIL(epoll_ctl(*tc[n].epfd, tc[n].opt, *tc[n].fd, tc[n].event),
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tc[n].exp_err, "epoll_clt(...) if %s", tc[n].desc);
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}
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static struct tst_test test = {
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.tcnt = ARRAY_SIZE(tc),
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.setup = setup,
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.cleanup = cleanup,
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.test = verify_epoll_ctl,
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};
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