[apparmor] [PATCH 1/2] tests: Add transition test options to verify exec procattr
Seth Arnold
seth.arnold at canonical.com
Sat Jun 25 03:24:00 UTC 2016
On Fri, Jun 24, 2016 at 05:15:53PM -0500, Tyler Hicks wrote:
> Add optional command line parameters to the transition test program that
> can be used to verify a certain label and/or mode that should be found
> in /proc/self/attr/exec.
>
> Signed-off-by: Tyler Hicks <tyhicks at canonical.com>
There's a comment above verify_confinement_context() that describes the
parameters. If the mood strikes you, please add an @attr entry to describe
the "current" vs "exec" choices.
Acked-by: Seth Arnold <seth.arnold at canonical.com>
for 2.9, 2.10, trunk, etc. Good riddence to racy tests.
Thanks
e ---
> tests/regression/apparmor/transition.c | 68 +++++++++++++++++++++++-----------
> 1 file changed, 47 insertions(+), 21 deletions(-)
>
> diff --git a/tests/regression/apparmor/transition.c b/tests/regression/apparmor/transition.c
> index 0f88b56..147ed94 100644
> --- a/tests/regression/apparmor/transition.c
> +++ b/tests/regression/apparmor/transition.c
> @@ -144,7 +144,8 @@ static bool compound_labels_equal(struct compound_label *cl1,
> * unconfined process calls aa_getcon(2), then @expected_mode should be equal
> * to NO_MODE.
> */
> -static void verify_confinement_context(const char *expected_label,
> +static void verify_confinement_context(const char *attr,
> + const char *expected_label,
> const char *expected_mode)
> {
> char *label, *mode;
> @@ -152,10 +153,10 @@ static void verify_confinement_context(const char *expected_label,
> bool null_expected_mode = expected_mode ?
> strcmp(NO_MODE, expected_mode) == 0 : false;
>
> - rc = aa_getcon(&label, &mode);
> + rc = aa_getprocattr(getpid(), attr, &label, &mode);
> if (rc < 0) {
> int err = errno;
> - fprintf(stderr, "FAIL - aa_getcon: %m");
> + fprintf(stderr, "FAIL - aa_getprocattr (%s): %m", attr);
> exit(err);
> }
>
> @@ -177,8 +178,8 @@ static void verify_confinement_context(const char *expected_label,
> }
>
> if (!compound_labels_equal(&cl, &expected_cl)) {
> - fprintf(stderr, "FAIL - label \"%s\" != expected_label \"%s\"\n",
> - label, expected_label);
> + fprintf(stderr, "FAIL - %s label \"%s\" != expected_label \"%s\"\n",
> + attr, label, expected_label);
> rc = EINVAL;
> goto err;
> }
> @@ -187,8 +188,8 @@ static void verify_confinement_context(const char *expected_label,
> if (expected_mode &&
> ((!mode && !null_expected_mode) ||
> (mode && strcmp(mode, expected_mode)))) {
> - fprintf(stderr, "FAIL - mode \"%s\" != expected_mode \"%s\"\n",
> - mode, expected_mode);
> + fprintf(stderr, "FAIL - %s mode \"%s\" != expected_mode \"%s\"\n",
> + attr, mode, expected_mode);
> rc = EINVAL;
> goto err;
> }
> @@ -220,6 +221,18 @@ err:
> exit(EINVAL);
> }
>
> +static void verify_current(const char *expected_label,
> + const char *expected_mode)
> +{
> + verify_confinement_context("current", expected_label, expected_mode);
> +}
> +
> +static void verify_exec(const char *expected_label,
> + const char *expected_mode)
> +{
> + verify_confinement_context("exec", expected_label, expected_mode);
> +}
> +
> static void handle_transition(int transition, const char *target)
> {
> const char *msg;
> @@ -278,24 +291,28 @@ static void exec(const char *prog, char **argv)
> static void usage(const char *prog)
> {
> fprintf(stderr,
> - "%s: [-O <LABEL> | -P <LABEL> | -o <LABEL> | -p <LABEL>] [-l <LABEL>] [-m <MODE>] [-f <FILE>] [-- ... [-- ...]]\n"
> + "%s: [-O <LABEL> | -P <LABEL> | -o <LABEL> | -p <LABEL>] [-L <LABEL>] [-M <MODE>] [-l <LABEL>] [-m <MODE>] [-f <FILE>] [-- ... [-- ...]]\n"
> " -O <LABEL>\tCall aa_change_onexec(LABEL)\n"
> " -P <LABEL>\tCall aa_change_profile(LABEL)\n"
> " -o <LABEL>\tCall aa_stack_onexec(LABEL)\n"
> " -p <LABEL>\tCall aa_stack_profile(LABEL)\n"
> - " -l <LABEL>\tVerify that aa_getcon() returns LABEL\n"
> - " -m <MODE>\tVerify that aa_getcon() returns MODE. Set to \"%s\" if a NULL mode is expected.\n"
> + " -L <LABEL>\tVerify that /proc/self/attr/exec contains LABEL\n"
> + " -M <MODE>\tVerify that /proc/self/attr/exec contains MODE. Set to \"%s\" if a NULL mode is expected.\n"
> + " -l <LABEL>\tVerify that /proc/self/attr/current contains LABEL\n"
> + " -m <MODE>\tVerify that /proc/self/attr/current contains MODE. Set to \"%s\" if a NULL mode is expected.\n"
> " -f <FILE>\tOpen FILE and attempt to write to and read from it\n\n"
> "If \"--\" is encountered, execv() will be called using the following argument\n"
> "as the program to execute and passing it all of the arguments following the\n"
> - "program name.\n", prog, NO_MODE);
> + "program name.\n", prog, NO_MODE, NO_MODE);
> exit(EINVAL);
> }
>
> struct options {
> const char *file;
> - const char *expected_label;
> - const char *expected_mode;
> + const char *expected_current_label;
> + const char *expected_current_mode;
> + const char *expected_exec_label;
> + const char *expected_exec_mode;
>
> int transition; /* CHANGE_PROFILE, STACK_ONEXEC, etc. */
> const char *target; /* The target label of the transition */
> @@ -321,16 +338,22 @@ static void parse_opts(int argc, char **argv, struct options *opts)
> int o;
>
> memset(opts, 0, sizeof(*opts));
> - while ((o = getopt(argc, argv, "f:l:m:O:P:o:p:")) != -1) {
> + while ((o = getopt(argc, argv, "f:L:M:l:m:O:P:o:p:")) != -1) {
> switch (o) {
> case 'f': /* file */
> opts->file = optarg;
> break;
> - case 'l': /* expected label */
> - opts->expected_label = optarg;
> + case 'L': /* expected exec label */
> + opts->expected_exec_label = optarg;
> + break;
> + case 'M': /* expected exec mode */
> + opts->expected_exec_mode = optarg;
> break;
> - case 'm': /* expected mode */
> - opts->expected_mode = optarg;
> + case 'l': /* expected current label */
> + opts->expected_current_label = optarg;
> + break;
> + case 'm': /* expected current mode */
> + opts->expected_current_mode = optarg;
> break;
> case 'O': /* aa_change_profile */
> set_transition(prog, opts, CHANGE_ONEXEC, optarg);
> @@ -371,9 +394,12 @@ int main(int argc, char **argv)
> if (opts.file)
> file_io(opts.file);
>
> - if (opts.expected_label || opts.expected_mode)
> - verify_confinement_context(opts.expected_label,
> - opts.expected_mode);
> + if (opts.expected_current_label || opts.expected_current_mode)
> + verify_current(opts.expected_current_label,
> + opts.expected_current_mode);
> +
> + if (opts.expected_exec_label || opts.expected_exec_mode)
> + verify_exec(opts.expected_exec_label, opts.expected_exec_mode);
>
> if (opts.exec)
> exec(opts.exec, opts.exec_argv);
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