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audit(4): add tests for extattr_get_file(2) and friends

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This commit includes extattr_{get_file, get_fd, get_link, list_file,
list_fd, list_link}.  It does not include any syscalls that modify, set, or
delete extended attributes, as those are in a different audit class.

Submitted by:	aniketpt
MFC after:	2 weeks
Sponsored by:	Google, Inc. (GSoC 2018)
Differential Revision:	https://reviews.freebsd.org/D15859
This commit is contained in:
Alan Somers 2018-06-17 15:22:27 +00:00
parent 2a821fd9d2
commit 7d951cc29a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=335284
1 changed files with 351 additions and 0 deletions
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351
tests/sys/audit/file-attribute-access.c
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@ -26,6 +26,7 @@
*/
#include <sys/param.h>
#include <sys/extattr.h>
#include <sys/ucred.h>
#include <sys/mount.h>
#include <sys/stat.h>
@ -45,7 +46,9 @@ static int filedesc, fhdesc;
static char extregex[80];
static struct stat statbuff;
static struct statfs statfsbuff;
static const char *buff = "ezio";
static const char *auclass = "fa";
static const char *name = "authorname";
static const char *path = "fileforaudit";
static const char *errpath = "dirdoesnotexist/fileforaudit";
static const char *successreg = "fileforaudit.*return,success";
@ -799,6 +802,340 @@ ATF_TC_CLEANUP(fpathconf_failure, tc)
}
ATF_TC_WITH_CLEANUP(extattr_get_file_success);
ATF_TC_HEAD(extattr_get_file_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_get_file(2) call");
}
ATF_TC_BODY(extattr_get_file_success, tc)
{
/* File needs to exist to call extattr_get_file(2) */
ATF_REQUIRE((filedesc = open(path, O_CREAT, mode)) != -1);
/* Set an extended attribute to be retrieved later on */
ATF_REQUIRE_EQ(sizeof(buff), extattr_set_file(path,
EXTATTR_NAMESPACE_USER, name, buff, sizeof(buff)));
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_file.*%s.*%s.*return,success", path, name);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(sizeof(buff), extattr_get_file(path,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
close(filedesc);
}
ATF_TC_CLEANUP(extattr_get_file_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_get_file_failure);
ATF_TC_HEAD(extattr_get_file_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_get_file(2) call");
}
ATF_TC_BODY(extattr_get_file_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_file.*%s.*%s.*failure", path, name);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, extattr_get_file(path,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_get_file_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_get_fd_success);
ATF_TC_HEAD(extattr_get_fd_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_get_fd(2) call");
}
ATF_TC_BODY(extattr_get_fd_success, tc)
{
/* File needs to exist to call extattr_get_fd(2) */
ATF_REQUIRE((filedesc = open(path, O_CREAT, mode)) != -1);
/* Set an extended attribute to be retrieved later on */
ATF_REQUIRE_EQ(sizeof(buff), extattr_set_file(path,
EXTATTR_NAMESPACE_USER, name, buff, sizeof(buff)));
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_fd.*%s.*return,success", name);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(sizeof(buff), extattr_get_fd(filedesc,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
close(filedesc);
}
ATF_TC_CLEANUP(extattr_get_fd_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_get_fd_failure);
ATF_TC_HEAD(extattr_get_fd_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_get_fd(2) call");
}
ATF_TC_BODY(extattr_get_fd_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_fd.*%s.*return,failure : Bad file descriptor", name);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid file descriptor */
ATF_REQUIRE_EQ(-1, extattr_get_fd(-1,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_get_fd_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_get_link_success);
ATF_TC_HEAD(extattr_get_link_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_get_link(2) call");
}
ATF_TC_BODY(extattr_get_link_success, tc)
{
/* Symbolic link needs to exist to call extattr_get_link(2) */
ATF_REQUIRE_EQ(0, symlink("symlink", path));
/* Set an extended attribute to be retrieved later on */
ATF_REQUIRE_EQ(sizeof(buff), extattr_set_link(path,
EXTATTR_NAMESPACE_USER, name, buff, sizeof(buff)));
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_link.*%s.*%s.*return,success", path, name);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE_EQ(sizeof(buff), extattr_get_link(path,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_get_link_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_get_link_failure);
ATF_TC_HEAD(extattr_get_link_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_get_link(2) call");
}
ATF_TC_BODY(extattr_get_link_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_get_link.*%s.*%s.*failure", path, name);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: symbolic link does not exist */
ATF_REQUIRE_EQ(-1, extattr_get_link(path,
EXTATTR_NAMESPACE_USER, name, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_get_link_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_file_success);
ATF_TC_HEAD(extattr_list_file_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_list_file(2) call");
}
ATF_TC_BODY(extattr_list_file_success, tc)
{
int readbuff;
/* File needs to exist to call extattr_list_file(2) */
ATF_REQUIRE((filedesc = open(path, O_CREAT, mode)) != -1);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((readbuff = extattr_list_file(path,
EXTATTR_NAMESPACE_USER, NULL, 0)) != -1);
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_file.*%s.*return,success,%d", path, readbuff);
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_list_file_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_file_failure);
ATF_TC_HEAD(extattr_list_file_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_list_file(2) call");
}
ATF_TC_BODY(extattr_list_file_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_file.*%s.*return,failure", path);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: file does not exist */
ATF_REQUIRE_EQ(-1, extattr_list_file(path,
EXTATTR_NAMESPACE_USER, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_list_file_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_fd_success);
ATF_TC_HEAD(extattr_list_fd_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_list_fd(2) call");
}
ATF_TC_BODY(extattr_list_fd_success, tc)
{
int readbuff;
/* File needs to exist to call extattr_list_fd(2) */
ATF_REQUIRE((filedesc = open(path, O_CREAT, mode)) != -1);
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((readbuff = extattr_list_fd(filedesc,
EXTATTR_NAMESPACE_USER, NULL, 0)) != -1);
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_fd.*return,success,%d", readbuff);
check_audit(fds, extregex, pipefd);
close(filedesc);
}
ATF_TC_CLEANUP(extattr_list_fd_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_fd_failure);
ATF_TC_HEAD(extattr_list_fd_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_list_fd(2) call");
}
ATF_TC_BODY(extattr_list_fd_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_fd.*return,failure : Bad file descriptor");
FILE *pipefd = setup(fds, auclass);
/* Failure reason: Invalid file descriptor */
ATF_REQUIRE_EQ(-1,
extattr_list_fd(-1, EXTATTR_NAMESPACE_USER, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_list_fd_failure, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_link_success);
ATF_TC_HEAD(extattr_list_link_success, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of a successful "
"extattr_list_link(2) call");
}
ATF_TC_BODY(extattr_list_link_success, tc)
{
int readbuff;
/* Symbolic link needs to exist to call extattr_list_link(2) */
ATF_REQUIRE_EQ(0, symlink("symlink", path));
FILE *pipefd = setup(fds, auclass);
ATF_REQUIRE((readbuff = extattr_list_link(path,
EXTATTR_NAMESPACE_USER, NULL, 0)) != -1);
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_link.*%s.*return,success,%d", path, readbuff);
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_list_link_success, tc)
{
cleanup();
}
ATF_TC_WITH_CLEANUP(extattr_list_link_failure);
ATF_TC_HEAD(extattr_list_link_failure, tc)
{
atf_tc_set_md_var(tc, "descr", "Tests the audit of an unsuccessful "
"extattr_list_link(2) call");
}
ATF_TC_BODY(extattr_list_link_failure, tc)
{
/* Prepare the regex to be checked in the audit record */
snprintf(extregex, sizeof(extregex),
"extattr_list_link.*%s.*failure", path);
FILE *pipefd = setup(fds, auclass);
/* Failure reason: symbolic link does not exist */
ATF_REQUIRE_EQ(-1, extattr_list_link(path,
EXTATTR_NAMESPACE_USER, NULL, 0));
check_audit(fds, extregex, pipefd);
}
ATF_TC_CLEANUP(extattr_list_link_failure, tc)
{
cleanup();
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, stat_success);
@ -839,5 +1176,19 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_ADD_TC(tp, fpathconf_success);
ATF_TP_ADD_TC(tp, fpathconf_failure);
ATF_TP_ADD_TC(tp, extattr_get_file_success);
ATF_TP_ADD_TC(tp, extattr_get_file_failure);
ATF_TP_ADD_TC(tp, extattr_get_fd_success);
ATF_TP_ADD_TC(tp, extattr_get_fd_failure);
ATF_TP_ADD_TC(tp, extattr_get_link_success);
ATF_TP_ADD_TC(tp, extattr_get_link_failure);
ATF_TP_ADD_TC(tp, extattr_list_file_success);
ATF_TP_ADD_TC(tp, extattr_list_file_failure);
ATF_TP_ADD_TC(tp, extattr_list_fd_success);
ATF_TP_ADD_TC(tp, extattr_list_fd_failure);
ATF_TP_ADD_TC(tp, extattr_list_link_success);
ATF_TP_ADD_TC(tp, extattr_list_link_failure);
return (atf_no_error());
}