/*-
 * Copyright (c) 2013 The FreeBSD Foundation
 *
 * This software was developed by Pawel Jakub Dawidek under sponsorship from
 * the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sys/param.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/wait.h>
#include <sys/nv.h>

#include <stdlib.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <paths.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

#include <atf-c.h>

#include <nv_impl.h>
#include <msgio.h>

#define ALPHABET        "abcdefghijklmnopqrstuvwxyz"
#define fd_is_valid(fd) (fcntl((fd), F_GETFL) != -1 || errno != EBADF)

static void
send_nvlist_child(int sock)
{
        nvlist_t *nvl;
        nvlist_t *empty;
        int pfd[2];

        nvl = nvlist_create(0);
        empty = nvlist_create(0);

        nvlist_add_bool(nvl, "nvlist/bool/true", true);
        nvlist_add_bool(nvl, "nvlist/bool/false", false);
        nvlist_add_number(nvl, "nvlist/number/0", 0);
        nvlist_add_number(nvl, "nvlist/number/1", 1);
        nvlist_add_number(nvl, "nvlist/number/-1", -1);
        nvlist_add_number(nvl, "nvlist/number/UINT64_MAX", UINT64_MAX);
        nvlist_add_number(nvl, "nvlist/number/INT64_MIN", INT64_MIN);
        nvlist_add_number(nvl, "nvlist/number/INT64_MAX", INT64_MAX);
        nvlist_add_string(nvl, "nvlist/string/", "");
        nvlist_add_string(nvl, "nvlist/string/x", "x");
        nvlist_add_string(nvl, "nvlist/string/" ALPHABET, ALPHABET);

        nvlist_add_descriptor(nvl, "nvlist/descriptor/STDERR_FILENO",
            STDERR_FILENO);
        if (pipe(pfd) == -1)
                err(EXIT_FAILURE, "pipe");
        if (write(pfd[1], "test", 4) != 4)
                err(EXIT_FAILURE, "write");
        close(pfd[1]);
        nvlist_add_descriptor(nvl, "nvlist/descriptor/pipe_rd", pfd[0]);
        close(pfd[0]);

        nvlist_add_binary(nvl, "nvlist/binary/x", "x", 1);
        nvlist_add_binary(nvl, "nvlist/binary/" ALPHABET, ALPHABET,
            sizeof(ALPHABET));
        nvlist_move_nvlist(nvl, "nvlist/nvlist/empty", empty);
        nvlist_add_nvlist(nvl, "nvlist/nvlist", nvl);

        nvlist_send(sock, nvl);

        nvlist_destroy(nvl);
}

static void
send_nvlist_parent(int sock)
{
        nvlist_t *nvl;
        const nvlist_t *cnvl, *empty;
        const char *name, *cname;
        void *cookie, *ccookie;
        int type, ctype, fd;
        size_t size;
        char buf[4];

        nvl = nvlist_recv(sock, 0);
        ATF_REQUIRE(nvlist_error(nvl) == 0);
        if (nvlist_error(nvl) != 0)
                err(1, "nvlist_recv() failed");

        cookie = NULL;

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_BOOL);
        ATF_REQUIRE(strcmp(name, "nvlist/bool/true") == 0);
        ATF_REQUIRE(nvlist_get_bool(nvl, name) == true);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_BOOL);
        ATF_REQUIRE(strcmp(name, "nvlist/bool/false") == 0);
        ATF_REQUIRE(nvlist_get_bool(nvl, name) == false);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/0") == 0);
        ATF_REQUIRE(nvlist_get_number(nvl, name) == 0);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/1") == 0);
        ATF_REQUIRE(nvlist_get_number(nvl, name) == 1);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/-1") == 0);
        ATF_REQUIRE((int)nvlist_get_number(nvl, name) == -1);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/UINT64_MAX") == 0);
        ATF_REQUIRE(nvlist_get_number(nvl, name) == UINT64_MAX);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/INT64_MIN") == 0);
        ATF_REQUIRE((int64_t)nvlist_get_number(nvl, name) == INT64_MIN);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(name, "nvlist/number/INT64_MAX") == 0);
        ATF_REQUIRE((int64_t)nvlist_get_number(nvl, name) == INT64_MAX);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(name, "nvlist/string/") == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(nvl, name), "") == 0);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(name, "nvlist/string/x") == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(nvl, name), "x") == 0);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(name, "nvlist/string/" ALPHABET) == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(nvl, name), ALPHABET) == 0);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_DESCRIPTOR);
        ATF_REQUIRE(strcmp(name, "nvlist/descriptor/STDERR_FILENO") == 0);
        ATF_REQUIRE(fd_is_valid(nvlist_get_descriptor(nvl, name)));

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_DESCRIPTOR);
        ATF_REQUIRE(strcmp(name, "nvlist/descriptor/pipe_rd") == 0);
        fd = nvlist_get_descriptor(nvl, name);
        ATF_REQUIRE(fd_is_valid(fd));
        ATF_REQUIRE(read(fd, buf, sizeof(buf)) == 4);
        ATF_REQUIRE(strncmp(buf, "test", sizeof(buf)) == 0);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_BINARY);
        ATF_REQUIRE(strcmp(name, "nvlist/binary/x") == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(nvl, name, NULL), "x", 1) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(nvl, name, &size), "x", 1) == 0);
        ATF_REQUIRE(size == 1);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_BINARY);
        ATF_REQUIRE(strcmp(name, "nvlist/binary/" ALPHABET) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(nvl, name, NULL), ALPHABET,
            sizeof(ALPHABET)) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(nvl, name, &size), ALPHABET,
            sizeof(ALPHABET)) == 0);
        ATF_REQUIRE(size == sizeof(ALPHABET));

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NVLIST);
        ATF_REQUIRE(strcmp(name, "nvlist/nvlist/empty") == 0);
        cnvl = nvlist_get_nvlist(nvl, name);
        ATF_REQUIRE(nvlist_empty(cnvl));

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name != NULL);
        ATF_REQUIRE(type == NV_TYPE_NVLIST);
        ATF_REQUIRE(strcmp(name, "nvlist/nvlist") == 0);
        cnvl = nvlist_get_nvlist(nvl, name);

        ccookie = NULL;

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_BOOL);
        ATF_REQUIRE(strcmp(cname, "nvlist/bool/true") == 0);
        ATF_REQUIRE(nvlist_get_bool(cnvl, cname) == true);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_BOOL);
        ATF_REQUIRE(strcmp(cname, "nvlist/bool/false") == 0);
        ATF_REQUIRE(nvlist_get_bool(cnvl, cname) == false);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/0") == 0);
        ATF_REQUIRE(nvlist_get_number(cnvl, cname) == 0);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/1") == 0);
        ATF_REQUIRE(nvlist_get_number(cnvl, cname) == 1);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/-1") == 0);
        ATF_REQUIRE((int)nvlist_get_number(cnvl, cname) == -1);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/UINT64_MAX") == 0);
        ATF_REQUIRE(nvlist_get_number(cnvl, cname) == UINT64_MAX);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/INT64_MIN") == 0);
        ATF_REQUIRE((int64_t)nvlist_get_number(cnvl, cname) == INT64_MIN);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NUMBER);
        ATF_REQUIRE(strcmp(cname, "nvlist/number/INT64_MAX") == 0);
        ATF_REQUIRE((int64_t)nvlist_get_number(cnvl, cname) == INT64_MAX);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(cname, "nvlist/string/") == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(cnvl, cname), "") == 0);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(cname, "nvlist/string/x") == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(cnvl, cname), "x") == 0);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_STRING);
        ATF_REQUIRE(strcmp(cname, "nvlist/string/" ALPHABET) == 0);
        ATF_REQUIRE(strcmp(nvlist_get_string(cnvl, cname), ALPHABET) == 0);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_DESCRIPTOR);
        ATF_REQUIRE(strcmp(cname, "nvlist/descriptor/STDERR_FILENO") == 0);
        ATF_REQUIRE(fd_is_valid(nvlist_get_descriptor(cnvl, cname)));

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_DESCRIPTOR);
        ATF_REQUIRE(strcmp(cname, "nvlist/descriptor/pipe_rd") == 0);
        ATF_REQUIRE(fd_is_valid(nvlist_get_descriptor(cnvl, cname)));

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_BINARY);
        ATF_REQUIRE(strcmp(cname, "nvlist/binary/x") == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(cnvl, cname, NULL), "x", 1) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(cnvl, cname, &size), "x", 1) == 0);
        ATF_REQUIRE(size == 1);

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_BINARY);
        ATF_REQUIRE(strcmp(cname, "nvlist/binary/" ALPHABET) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(cnvl, cname, NULL), ALPHABET,
            sizeof(ALPHABET)) == 0);
        ATF_REQUIRE(memcmp(nvlist_get_binary(cnvl, cname, &size), ALPHABET,
            sizeof(ALPHABET)) == 0);
        ATF_REQUIRE(size == sizeof(ALPHABET));

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname != NULL);
        ATF_REQUIRE(ctype == NV_TYPE_NVLIST);
        ATF_REQUIRE(strcmp(cname, "nvlist/nvlist/empty") == 0);
        empty = nvlist_get_nvlist(cnvl, cname);
        ATF_REQUIRE(nvlist_empty(empty));

        cname = nvlist_next(cnvl, &ctype, &ccookie);
        ATF_REQUIRE(cname == NULL);

        name = nvlist_next(nvl, &type, &cookie);
        ATF_REQUIRE(name == NULL);

        nvlist_destroy(nvl);
}

static void
nvlist_send_recv__send_nvlist(short sotype)
{
        int socks[2], status;
        pid_t pid;

        ATF_REQUIRE(socketpair(PF_UNIX, sotype, 0, socks) == 0);

        pid = fork();
        ATF_REQUIRE(pid >= 0);
        if (pid == 0) {
                /* Child. */
                (void)close(socks[0]);
                send_nvlist_child(socks[1]);
                _exit(0);
        }

        (void)close(socks[1]);
        send_nvlist_parent(socks[0]);

        ATF_REQUIRE(waitpid(pid, &status, 0) == pid);
        ATF_REQUIRE(status == 0);
}

static void
nvlist_send_recv__send_closed_fd(short sotype)
{
        nvlist_t *nvl;
        int socks[2];

        ATF_REQUIRE(socketpair(PF_UNIX, sotype, 0, socks) == 0);

        nvl = nvlist_create(0);
        ATF_REQUIRE(nvl != NULL);
        nvlist_add_descriptor(nvl, "fd", 12345);
        ATF_REQUIRE(nvlist_error(nvl) == EBADF);

        ATF_REQUIRE_ERRNO(EBADF, nvlist_send(socks[1], nvl) != 0);
}

static int
nopenfds(void)
{
        size_t len;
        int error, mib[4], n;

        mib[0] = CTL_KERN;
        mib[1] = KERN_PROC;
        mib[2] = KERN_PROC_NFDS;
        mib[3] = 0;

        len = sizeof(n);
        error = sysctl(mib, nitems(mib), &n, &len, NULL, 0);
        if (error != 0)
                return (-1);
        return (n);
}

#define NFDS    512

static void
send_many_fds_child(int sock)
{
        char name[16];
        nvlist_t *nvl;
        int anfds, bnfds, fd, i, j;

        fd = open(_PATH_DEVNULL, O_RDONLY);
        ATF_REQUIRE(fd >= 0);

        for (i = 1; i < NFDS; i++) {
                nvl = nvlist_create(0);
                bnfds = nopenfds();
                if (bnfds == -1)
                        err(EXIT_FAILURE, "sysctl");

                for (j = 0; j < i; j++) {
                        snprintf(name, sizeof(name), "fd%d", j);
                        nvlist_add_descriptor(nvl, name, fd);
                }
                nvlist_send(sock, nvl);
                nvlist_destroy(nvl);

                anfds = nopenfds();
                if (anfds == -1)
                        err(EXIT_FAILURE, "sysctl");
                if (anfds != bnfds)
                        errx(EXIT_FAILURE, "fd count mismatch");
        }
}

static void
nvlist_send_recv__send_many_fds(short sotype)
{
        char name[16];
        nvlist_t *nvl;
        int anfds, bnfds, fd, i, j, socks[2], status;
        pid_t pid;

        ATF_REQUIRE(socketpair(PF_UNIX, sotype, 0, socks) == 0);

        pid = fork();
        ATF_REQUIRE(pid >= 0);
        if (pid == 0) {
                /* Child. */
                (void)close(socks[0]);
                send_many_fds_child(socks[1]);
                _exit(0);
        }

        (void)close(socks[1]);

        for (i = 1; i < NFDS; i++) {
                bnfds = nopenfds();
                ATF_REQUIRE(bnfds != -1);

                nvl = nvlist_recv(socks[0], 0);
                ATF_REQUIRE(nvl != NULL);
                for (j = 0; j < i; j++) {
                        snprintf(name, sizeof(name), "fd%d", j);
                        fd = nvlist_take_descriptor(nvl, name);
                        ATF_REQUIRE(close(fd) == 0);
                }
                nvlist_destroy(nvl);

                anfds = nopenfds();
                ATF_REQUIRE(anfds != -1);
                ATF_REQUIRE(anfds == bnfds);
        }

        ATF_REQUIRE(waitpid(pid, &status, 0) == pid);
        ATF_REQUIRE(status == 0);
}

/*
 * This test needs to tune the following sysctl's:
 *      net.local.dgram.maxdgram
 *      net.local.dgram.recvspace
 */
ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_many_fds__dgram);
ATF_TC_BODY(nvlist_send_recv__send_many_fds__dgram, tc)
{
        u_long maxdgram, recvspace, temp_maxdgram, temp_recvspace;
        size_t len;
        int error;

        /* size of the largest datagram to send */
        temp_maxdgram = 16772;
        len = sizeof(maxdgram);
        error = sysctlbyname("net.local.dgram.maxdgram", &maxdgram,
            &len, &temp_maxdgram, sizeof(temp_maxdgram));
        if (error != 0)
                atf_tc_skip("cannot set net.local.dgram.maxdgram: %s", strerror(errno));

        /*
         * The receive queue fills up quicker than it's being emptied,
         * bump it to a sufficiently large enough value, 1M.
         */
        temp_recvspace = 1048576;
        len = sizeof(recvspace);
        error = sysctlbyname("net.local.dgram.recvspace", &recvspace,
            &len, &temp_recvspace, sizeof(temp_recvspace));
        if (error != 0)
                atf_tc_skip("cannot set net.local.dgram.recvspace: %s", strerror(errno));

        nvlist_send_recv__send_many_fds(SOCK_DGRAM);

        /* restore original values */
        error = sysctlbyname("net.local.dgram.maxdgram", NULL, NULL, &maxdgram, sizeof(maxdgram));
        if (error != 0)
                warn("failed to restore net.local.dgram.maxdgram");

        error = sysctlbyname("net.local.dgram.recvspace", NULL, NULL, &recvspace, sizeof(recvspace));
        if (error != 0)
                warn("failed to restore net.local.dgram.recvspace");
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_many_fds__stream);
ATF_TC_BODY(nvlist_send_recv__send_many_fds__stream, tc)
{
        nvlist_send_recv__send_many_fds(SOCK_STREAM);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_nvlist__dgram);
ATF_TC_BODY(nvlist_send_recv__send_nvlist__dgram, tc)
{
        nvlist_send_recv__send_nvlist(SOCK_DGRAM);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_nvlist__stream);
ATF_TC_BODY(nvlist_send_recv__send_nvlist__stream, tc)
{
        nvlist_send_recv__send_nvlist(SOCK_STREAM);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_closed_fd__dgram);
ATF_TC_BODY(nvlist_send_recv__send_closed_fd__dgram, tc)
{
        nvlist_send_recv__send_closed_fd(SOCK_DGRAM);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__send_closed_fd__stream);
ATF_TC_BODY(nvlist_send_recv__send_closed_fd__stream, tc)
{
        nvlist_send_recv__send_closed_fd(SOCK_STREAM);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__overflow_header_size);
ATF_TC_BODY(nvlist_send_recv__overflow_header_size, tc)
{
        nvlist_t *nvl;
        void *packed;
        size_t packed_size;
        struct nvlist_header *header;
        int fd, socks[2], status;
        pid_t pid;

#ifdef NO_ASAN
        atf_tc_skip("This test requires ASAN");
#endif

        ATF_REQUIRE_EQ(socketpair(PF_UNIX, SOCK_STREAM, 0, socks), 0);

        pid = fork();
        ATF_REQUIRE(pid >= 0);

        if (pid == 0) {
                /* Child. */
                fd = socks[0];
                close(socks[1]);

                nvl = nvlist_create(0);
                ATF_REQUIRE(nvl != NULL);
                ATF_REQUIRE(nvlist_empty(nvl));

                packed = nvlist_pack(nvl, &packed_size);
                ATF_REQUIRE(packed != NULL);
                ATF_REQUIRE(packed_size >= sizeof(struct nvlist_header));

                header = (struct nvlist_header *)packed;
                header->nvlh_size = SIZE_MAX - sizeof(struct nvlist_header) + 2;

                ATF_REQUIRE_EQ(write(fd, packed, packed_size),
                    (ssize_t)sizeof(struct nvlist_header));

                nvlist_destroy(nvl);
                free(packed);

                exit(0);
        } else {
                /* Parent */
                fd = socks[1];
                close(socks[0]);

                errno = 0;
                nvl = nvlist_recv(fd, 0);
                ATF_REQUIRE(nvl == NULL);

                /*
                 * Make sure it has failed on EINVAL, and not on
                 * errors returned by malloc or recv.
                 */
                ATF_REQUIRE(errno == EINVAL);

                ATF_REQUIRE(waitpid(pid, &status, 0) == pid);
                ATF_REQUIRE(status == 0);
                close(fd);
        }
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__invalid_fd_size);
ATF_TC_BODY(nvlist_send_recv__invalid_fd_size, tc)
{
        nvlist_t *nvl;
        void *packed;
        size_t packed_size;
        struct nvlist_header *header;
        int fd, socks[2], status;
        pid_t pid;

        ATF_REQUIRE_EQ(socketpair(PF_UNIX, SOCK_STREAM, 0, socks), 0);

        pid = fork();
        ATF_REQUIRE(pid >= 0);

        if (pid == 0) {
                /* Child. */
                fd = socks[0];
                close(socks[1]);

                nvl = nvlist_create(0);
                ATF_REQUIRE(nvl != NULL);
                ATF_REQUIRE(nvlist_empty(nvl));

                nvlist_add_string(nvl, "nvl/string", "test");
                ATF_REQUIRE_EQ(nvlist_error(nvl), 0);

                packed = nvlist_pack(nvl, &packed_size);
                ATF_REQUIRE(packed != NULL);
                ATF_REQUIRE(packed_size >= sizeof(struct nvlist_header));

                header = (struct nvlist_header *)packed;
                header->nvlh_descriptors = 0x20;

                ATF_REQUIRE_EQ(write(fd, packed, packed_size),
                    (ssize_t)packed_size);

                nvlist_destroy(nvl);
                free(packed);

                exit(0);
        } else {
                /* Parent */
                fd = socks[1];
                close(socks[0]);

                nvl = nvlist_recv(fd, 0);
                ATF_REQUIRE(nvl == NULL);

                ATF_REQUIRE(waitpid(pid, &status, 0) == pid);
                ATF_REQUIRE(status == 0);
        }

        close(fd);
}

ATF_TC_WITHOUT_HEAD(nvlist_send_recv__overflow_fd_size);
ATF_TC_BODY(nvlist_send_recv__overflow_fd_size, tc)
{
        nvlist_t *nvl;
        void *packed;
        size_t packed_size;
        struct nvlist_header *header;
        int fd, socks[2], fds[1], status;
        pid_t pid;

        ATF_REQUIRE_EQ(socketpair(PF_UNIX, SOCK_STREAM, 0, socks), 0);

        pid = fork();
        ATF_REQUIRE(pid >= 0);

        if (pid == 0) {
                /* Child. */
                fd = socks[0];
                close(socks[1]);

                nvl = nvlist_create(0);
                ATF_REQUIRE(nvl != NULL);
                ATF_REQUIRE(nvlist_empty(nvl));

                nvlist_add_string(nvl, "nvl/string", "test");
                ATF_REQUIRE_EQ(nvlist_error(nvl), 0);

                packed = nvlist_pack(nvl, &packed_size);
                ATF_REQUIRE(packed != NULL);
                ATF_REQUIRE(packed_size >= sizeof(struct nvlist_header));

                header = (struct nvlist_header *)packed;
                header->nvlh_descriptors = 0x4000000000000002;

                ATF_REQUIRE_EQ(write(fd, packed, packed_size),
                    (ssize_t)packed_size);

                fds[0] = dup(STDERR_FILENO);
                ATF_REQUIRE(fds[0] >= 0);
                ATF_REQUIRE_EQ(fd_send(fd, fds, 1), 0);

                nvlist_destroy(nvl);
                free(packed);

                close(fds[0]);
                close(fd);

                exit(0);
        } else {
                /* Parent */
                fd = socks[1];
                close(socks[0]);

                nvl = nvlist_recv(fd, 0);
                ATF_REQUIRE(nvl == NULL);

                /* Make sure that fd was not parsed by nvlist */
                ATF_REQUIRE(fd_recv(fd, fds, 1) == 0);

                ATF_REQUIRE(waitpid(pid, &status, 0) == pid);
                ATF_REQUIRE(status == 0);

                close(fds[0]);
                close(fd);
        }
}

ATF_TP_ADD_TCS(tp)
{

        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_nvlist__dgram);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_nvlist__stream);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_closed_fd__dgram);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_closed_fd__stream);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_many_fds__dgram);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__send_many_fds__stream);

        ATF_TP_ADD_TC(tp, nvlist_send_recv__overflow_header_size);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__invalid_fd_size);
        ATF_TP_ADD_TC(tp, nvlist_send_recv__overflow_fd_size);

        return (atf_no_error());
}