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test: add varlink fd passing test

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This commit is contained in:
Lennart Poettering
2023-04-05 15:54:52 +02:00
parent d37cdac6ce
commit 7947dbe322
1 changed files with 78 additions and 0 deletions
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78
src/test/test-varlink.c
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@@ -6,6 +6,7 @@
#include "sd-event.h"
#include "data-fd-util.h"
#include "fd-util.h"
#include "json.h"
#include "rm-rf.h"
@@ -48,6 +49,55 @@ static int method_something(Varlink *link, JsonVariant *parameters, VarlinkMetho
return varlink_reply(link, ret);
}
static void test_fd(int fd, const void *buf, size_t n) {
char rbuf[n + 1];
ssize_t m;
m = read(fd, rbuf, n + 1);
assert_se(memcmp_nn(buf, n, rbuf, m) == 0);
}
static int method_passfd(Varlink *link, JsonVariant *parameters, VarlinkMethodFlags flags, void *userdata) {
_cleanup_(json_variant_unrefp) JsonVariant *ret = NULL;
JsonVariant *a;
int r;
a = json_variant_by_key(parameters, "fd");
if (!a)
return varlink_error(link, "io.test.BadParameters", NULL);
assert_se(streq_ptr(json_variant_string(a), "whoop"));
int xx = varlink_peek_fd(link, 0),
yy = varlink_peek_fd(link, 1),
zz = varlink_peek_fd(link, 2);
log_info("%i %i %i", xx, yy, zz);
test_fd(xx, "foo", 3);
test_fd(yy, "bar", 3);
test_fd(zz, "quux", 4);
_cleanup_close_ int vv = acquire_data_fd("miau", 4, 0);
_cleanup_close_ int ww = acquire_data_fd("wuff", 4, 0);
assert_se(vv >= 0);
assert_se(ww >= 0);
r = json_build(&ret, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("yo", JSON_BUILD_INTEGER(88))));
if (r < 0)
return r;
assert_se(varlink_push_fd(link, vv) == 0);
assert_se(varlink_push_fd(link, ww) == 1);
TAKE_FD(vv);
TAKE_FD(ww);
return varlink_reply(link, ret);
}
static int method_done(Varlink *link, JsonVariant *parameters, VarlinkMethodFlags flags, void *userdata) {
if (++n_done == 2)
@@ -77,6 +127,8 @@ static int on_connect(VarlinkServer *s, Varlink *link, void *userdata) {
assert_se(varlink_get_peer_uid(link, &uid) >= 0);
assert_se(getuid() == uid);
assert_se(varlink_set_allow_fd_passing_input(link, true) >= 0);
assert_se(varlink_set_allow_fd_passing_output(link, true) >= 0);
return 0;
}
@@ -151,11 +203,36 @@ static void *thread(void *arg) {
assert_se(varlink_connect_address(&c, arg) >= 0);
assert_se(varlink_set_description(c, "thread-client") >= 0);
assert_se(varlink_set_allow_fd_passing_input(c, true) >= 0);
assert_se(varlink_set_allow_fd_passing_output(c, true) >= 0);
assert_se(varlink_call(c, "io.test.DoSomething", i, &o, &e, NULL) >= 0);
assert_se(json_variant_integer(json_variant_by_key(o, "sum")) == 88 + 99);
assert_se(!e);
int fd1 = acquire_data_fd("foo", 3, 0);
int fd2 = acquire_data_fd("bar", 3, 0);
int fd3 = acquire_data_fd("quux", 4, 0);
assert_se(fd1 >= 0);
assert_se(fd2 >= 0);
assert_se(fd3 >= 0);
assert_se(varlink_push_fd(c, fd1) == 0);
assert_se(varlink_push_fd(c, fd2) == 1);
assert_se(varlink_push_fd(c, fd3) == 2);
assert_se(varlink_callb(c, "io.test.PassFD", &o, &e, NULL, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("fd", JSON_BUILD_STRING("whoop")))) >= 0);
int fd4 = varlink_peek_fd(c, 0);
int fd5 = varlink_peek_fd(c, 1);
assert_se(fd4 >= 0);
assert_se(fd5 >= 0);
test_fd(fd4, "miau", 4);
test_fd(fd5, "wuff", 4);
assert_se(varlink_callb(c, "io.test.IDontExist", &o, &e, NULL, JSON_BUILD_OBJECT(JSON_BUILD_PAIR("x", JSON_BUILD_REAL(5.5)))) >= 0);
assert_se(streq_ptr(json_variant_string(json_variant_by_key(o, "method")), "io.test.IDontExist"));
assert_se(streq(e, VARLINK_ERROR_METHOD_NOT_FOUND));
@@ -211,6 +288,7 @@ int main(int argc, char *argv[]) {
assert_se(varlink_server_new(&s, VARLINK_SERVER_ACCOUNT_UID) >= 0);
assert_se(varlink_server_set_description(s, "our-server") >= 0);
assert_se(varlink_server_bind_method(s, "io.test.PassFD", method_passfd) >= 0);
assert_se(varlink_server_bind_method(s, "io.test.DoSomething", method_something) >= 0);
assert_se(varlink_server_bind_method(s, "io.test.Done", method_done) >= 0);
assert_se(varlink_server_bind_connect(s, on_connect) >= 0);