/*- * Copyright (c) 2013 The FreeBSD Foundation * All rights reserved. * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #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; atf_tc_skip("https://bugs.freebsd.org/260891"); /* 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_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); return (atf_no_error()); }