Index: tests/sys/audit/Makefile =================================================================== --- tests/sys/audit/Makefile +++ tests/sys/audit/Makefile @@ -7,6 +7,7 @@ ATF_TESTS_C+= file-close ATF_TESTS_C+= file-write ATF_TESTS_C+= file-read +ATF_TESTS_C+= open SRCS.file-create+= file-create.c SRCS.file-create+= utils.c @@ -18,6 +19,8 @@ SRCS.file-write+= utils.c SRCS.file-read+= file-read.c SRCS.file-read+= utils.c +SRCS.open+= open.c +SRCS.open+= utils.c TEST_METADATA+= timeout="30" TEST_METADATA+= required_user="root" Index: tests/sys/audit/open.c =================================================================== --- /dev/null +++ tests/sys/audit/open.c @@ -0,0 +1,183 @@ +/*- + * Copyright 2018 Aniket Pandey + * + * 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 AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * 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 + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Note: open(2) and openat(2) have 12 events each for various values of 'flag' + * Please see: contrib/openbsm/etc/audit_event#L261 + * + * 270:AUE_OPENAT_R:openat(2) - read:fr + * 271:AUE_OPENAT_RC:openat(2) - read,creat:fc,fr,fa,fm + * 272:AUE_OPENAT_RT:openat(2) - read,trunc:fd,fr,fa,fm + * 273:AUE_OPENAT_RTC:openat(2) - read,creat,trunc:fc,fd,fr,fa,fm + * 274:AUE_OPENAT_W:openat(2) - write:fw + * 275:AUE_OPENAT_WC:openat(2) - write,creat:fc,fw,fa,fm + * 276:AUE_OPENAT_WT:openat(2) - write,trunc:fd,fw,fa,fm + * 277:AUE_OPENAT_WTC:openat(2) - write,creat,trunc:fc,fd,fw,fa,fm + * 278:AUE_OPENAT_RW:openat(2) - read,write:fr,fw + * 279:AUE_OPENAT_RWC:openat(2) - read,write,create:fc,fw,fr,fa,fm + * 280:AUE_OPENAT_RWT:openat(2) - read,write,trunc:fd,fw,fr,fa,fm + * 281:AUE_OPENAT_RWTC:openat(2) - read,write,creat,trunc:fc,fd,fw,fr,fa,fm + */ + +#include + +#include +#include + +#include "utils.h" + +static struct pollfd fds[1]; +static mode_t o_mode = 0777; +static const char *path = "fileforaudit"; +static const char *errpath = "adirhasnoname/fileforaudit"; + +/* + * Define test-cases for success and failure modes of both open(2) and openat(2) + */ +#define OPEN_AT_TC_DEFINE(mode, flag, class) \ +ATF_TC_WITH_CLEANUP(open_ ## mode ## _success); \ +ATF_TC_HEAD(open_ ## mode ## _success, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful " \ + "open(2) call for %s flag", class); \ +} \ +ATF_TC_BODY(open_ ## mode ## _success, tc) \ +{ \ + const char *regex = "open.*fileforaudit.*return,success"; \ + /* File needs to exist for successful open(2) invocation */ \ + ATF_REQUIRE(open(path, O_CREAT, o_mode) != -1); \ + FILE *pipefd = setup(fds, class); \ + ATF_REQUIRE(syscall(SYS_open, path, flag) != -1); \ + check_audit(fds, regex, pipefd); \ +} \ +ATF_TC_CLEANUP(open_ ## mode ## _success, tc) \ +{ \ + cleanup(); \ +} \ +ATF_TC_WITH_CLEANUP(open_ ## mode ## _failure); \ +ATF_TC_HEAD(open_ ## mode ## _failure, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful " \ + "open(2) call for %s flag", class); \ +} \ +ATF_TC_BODY(open_ ## mode ## _failure, tc) \ +{ \ + const char *regex = "open.*fileforaudit.*return,failure"; \ + FILE *pipefd = setup(fds, class); \ + ATF_REQUIRE_EQ(-1, syscall(SYS_open, errpath, flag)); \ + check_audit(fds, regex, pipefd); \ +} \ +ATF_TC_CLEANUP(open_ ## mode ## _failure, tc) \ +{ \ + cleanup(); \ +} \ +ATF_TC_WITH_CLEANUP(openat_ ## mode ## _success); \ +ATF_TC_HEAD(openat_ ## mode ## _success, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful " \ + "openat(2) call for %s flag", class); \ +} \ +ATF_TC_BODY(openat_ ## mode ## _success, tc) \ +{ \ + const char *regex = "openat.*fileforaudit.*return,success"; \ + /* File needs to exist for successful openat(2) invocation */ \ + ATF_REQUIRE(open(path, O_CREAT, o_mode) != -1); \ + FILE *pipefd = setup(fds, class); \ + ATF_REQUIRE(openat(AT_FDCWD, path, flag) != -1); \ + check_audit(fds, regex, pipefd); \ +} \ +ATF_TC_CLEANUP(openat_ ## mode ## _success, tc) \ +{ \ + cleanup(); \ +} \ +ATF_TC_WITH_CLEANUP(openat_ ## mode ## _failure); \ +ATF_TC_HEAD(openat_ ## mode ## _failure, tc) \ +{ \ + atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful " \ + "openat(2) call for %s flag", class); \ +} \ +ATF_TC_BODY(openat_ ## mode ## _failure, tc) \ +{ \ + const char *regex = "openat.*fileforaudit.*return,failure"; \ + FILE *pipefd = setup(fds, class); \ + ATF_REQUIRE_EQ(-1, openat(AT_FDCWD, errpath, flag)); \ + check_audit(fds, regex, pipefd); \ +} \ +ATF_TC_CLEANUP(openat_ ## mode ## _failure, tc) \ +{ \ + cleanup(); \ +} + +/* + * Add both success and failure modes of open(2) and openat(2) + */ +#define OPEN_AT_TC_ADD(tp, mode) \ +do { \ + ATF_TP_ADD_TC(tp, open_ ## mode ## _success); \ + ATF_TP_ADD_TC(tp, open_ ## mode ## _failure); \ + ATF_TP_ADD_TC(tp, openat_ ## mode ## _success); \ + ATF_TP_ADD_TC(tp, openat_ ## mode ## _failure); \ +} while (0) + + +/* + * Each of the 12 OPEN_AT_TC_DEFINE statement is a group of 4 test-cases + * corresponding to separate audit events for open(2) and openat(2) + */ +OPEN_AT_TC_DEFINE(read, O_RDONLY, "fr") +OPEN_AT_TC_DEFINE(read_creat, O_RDONLY | O_CREAT, "fr") +OPEN_AT_TC_DEFINE(read_trunc, O_RDONLY | O_TRUNC, "fr") +OPEN_AT_TC_DEFINE(read_creat_trunc, O_RDONLY | O_CREAT | O_TRUNC, "fr"); +OPEN_AT_TC_DEFINE(write, O_WRONLY, "fw") +OPEN_AT_TC_DEFINE(write_creat, O_WRONLY | O_CREAT, "fw") +OPEN_AT_TC_DEFINE(write_trunc, O_WRONLY | O_TRUNC, "fw") +OPEN_AT_TC_DEFINE(write_creat_trunc, O_WRONLY | O_CREAT | O_TRUNC, "fw") +OPEN_AT_TC_DEFINE(read_write, O_RDWR, "fr") +OPEN_AT_TC_DEFINE(read_write_creat, O_RDWR | O_CREAT, "fw") +OPEN_AT_TC_DEFINE(read_write_trunc, O_RDWR | O_TRUNC, "fr") +OPEN_AT_TC_DEFINE(read_write_creat_trunc, O_RDWR | O_CREAT | O_TRUNC, "fw") + + +ATF_TP_ADD_TCS(tp) +{ + OPEN_AT_TC_ADD(tp, read); + OPEN_AT_TC_ADD(tp, read_creat); + OPEN_AT_TC_ADD(tp, read_trunc); + OPEN_AT_TC_ADD(tp, read_creat_trunc); + + OPEN_AT_TC_ADD(tp, write); + OPEN_AT_TC_ADD(tp, write_creat); + OPEN_AT_TC_ADD(tp, write_trunc); + OPEN_AT_TC_ADD(tp, write_creat_trunc); + + OPEN_AT_TC_ADD(tp, read_write); + OPEN_AT_TC_ADD(tp, read_write_creat); + OPEN_AT_TC_ADD(tp, read_write_trunc); + OPEN_AT_TC_ADD(tp, read_write_creat_trunc); + + return (atf_no_error()); +}