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Diffstat (limited to 'src/libsystemd/sd-rtnl/test-rtnl.c')
-rw-r--r--src/libsystemd/sd-rtnl/test-rtnl.c330
1 files changed, 330 insertions, 0 deletions
diff --git a/src/libsystemd/sd-rtnl/test-rtnl.c b/src/libsystemd/sd-rtnl/test-rtnl.c
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+++ b/src/libsystemd/sd-rtnl/test-rtnl.c
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Tom Gundersen <teg@jklm.no>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <linux/rtnetlink.h>
+#include <netinet/ether.h>
+
+#include "util.h"
+#include "macro.h"
+#include "sd-rtnl.h"
+#include "socket-util.h"
+#include "rtnl-util.h"
+#include "event-util.h"
+
+static void test_link_configure(sd_rtnl *rtnl, int ifindex) {
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *message;
+ uint16_t type;
+ const char *mac = "98:fe:94:3f:c6:18", *name = "test";
+ unsigned int mtu = 1450;
+ void *data;
+
+ /* we'd really like to test NEWLINK, but let's not mess with the running kernel */
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &message) >= 0);
+ assert(sd_rtnl_message_append_string(message, IFLA_IFNAME, name) >= 0);
+ assert(sd_rtnl_message_append_ether_addr(message, IFLA_ADDRESS, ether_aton(mac)) >= 0);
+ assert(sd_rtnl_message_append_u32(message, IFLA_MTU, mtu) >= 0);
+
+ assert(sd_rtnl_message_read(message, &type, &data) > 0);
+ assert(type == IFLA_IFNAME);
+ assert(streq(name, (char *) data));
+
+ assert(sd_rtnl_message_read(message, &type, &data) > 0);
+ assert(type == IFLA_ADDRESS);
+ assert(streq(mac, ether_ntoa(data)));
+
+ assert(sd_rtnl_message_read(message, &type, &data) > 0);
+ assert(type == IFLA_MTU);
+ assert(mtu == *(unsigned int *) data);
+
+ assert(sd_rtnl_call(rtnl, message, 0, NULL) == 1);
+}
+
+static void test_route(void) {
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *req;
+ struct in_addr addr;
+ uint32_t index = 2;
+ uint16_t type;
+ void *data;
+ int r;
+
+ r = sd_rtnl_message_route_new(RTM_NEWROUTE, AF_INET, &req);
+ if (r < 0) {
+ log_error("Could not create RTM_NEWROUTE message: %s", strerror(-r));
+ return;
+ }
+
+ addr.s_addr = htonl(INADDR_LOOPBACK);
+
+ r = sd_rtnl_message_append_in_addr(req, RTA_GATEWAY, &addr);
+ if (r < 0) {
+ log_error("Could not append RTA_GATEWAY attribute: %s", strerror(-r));
+ return;
+ }
+
+ r = sd_rtnl_message_append_u32(req, RTA_OIF, index);
+ if (r < 0) {
+ log_error("Could not append RTA_OIF attribute: %s", strerror(-r));
+ return;
+ }
+
+ assert(sd_rtnl_message_read(req, &type, &data) > 0);
+ assert(type == RTA_GATEWAY);
+ assert(((struct in_addr *)data)->s_addr == addr.s_addr);
+
+ assert(sd_rtnl_message_read(req, &type, &data) > 0);
+ assert(type == RTA_OIF);
+ assert(*(uint32_t *) data == index);
+}
+
+static void test_multiple(void) {
+ sd_rtnl *rtnl1, *rtnl2;
+
+ assert(sd_rtnl_open(0, &rtnl1) >= 0);
+ assert(sd_rtnl_open(0, &rtnl2) >= 0);
+
+ rtnl1 = sd_rtnl_unref(rtnl1);
+ rtnl2 = sd_rtnl_unref(rtnl2);
+}
+
+static int link_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ void *data;
+ uint16_t type;
+ char *ifname = userdata;
+
+ assert(rtnl);
+ assert(m);
+
+ log_info("got link info about %s", ifname);
+ free(ifname);
+
+ while (sd_rtnl_message_read(m, &type, &data) > 0) {
+ switch (type) {
+// case IFLA_MTU:
+// assert(*(unsigned int *) data == 65536);
+// break;
+// case IFLA_QDISC:
+// assert(streq((char *) data, "noqueue"));
+// break;
+ case IFLA_IFNAME:
+ assert(streq((char *) data, "lo"));
+ break;
+ }
+ }
+
+ return 1;
+}
+
+static void test_event_loop(int ifindex) {
+ _cleanup_event_unref_ sd_event *event = NULL;
+ _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL;
+ char *ifname;
+
+ ifname = strdup("lo2");
+ assert(ifname);
+
+ assert(sd_rtnl_open(0, &rtnl) >= 0);
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m) >= 0);
+
+ assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, NULL) >= 0);
+
+ assert(sd_event_default(&event) >= 0);
+
+ assert(sd_rtnl_attach_event(rtnl, event, 0) >= 0);
+
+ assert(sd_event_run(event, 0) >= 0);
+
+ assert(sd_rtnl_detach_event(rtnl) >= 0);
+}
+
+static int pipe_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
+ int *counter = userdata;
+
+ (*counter) --;
+
+ log_info("got reply, %d left in pipe", *counter);
+
+ return sd_rtnl_message_get_errno(m);
+}
+
+static void test_async(int ifindex) {
+ _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL, *r = NULL;
+ uint32_t serial;
+ char *ifname;
+
+ ifname = strdup("lo");
+ assert(ifname);
+
+ assert(sd_rtnl_open(0, &rtnl) >= 0);
+
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m) >= 0);
+
+ assert(sd_rtnl_call_async(rtnl, m, &link_handler, ifname, 0, &serial) >= 0);
+
+ assert(sd_rtnl_wait(rtnl, 0) >= 0);
+ assert(sd_rtnl_process(rtnl, &r) >= 0);
+}
+
+static void test_pipe(int ifindex) {
+ _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m1 = NULL, *m2 = NULL;
+ int counter = 0;
+
+ assert(sd_rtnl_open(0, &rtnl) >= 0);
+
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m1) >= 0);
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, ifindex, &m2) >= 0);
+
+ counter ++;
+ assert(sd_rtnl_call_async(rtnl, m1, &pipe_handler, &counter, 0, NULL) >= 0);
+
+ counter ++;
+ assert(sd_rtnl_call_async(rtnl, m2, &pipe_handler, &counter, 0, NULL) >= 0);
+
+ while (counter > 0) {
+ assert(sd_rtnl_wait(rtnl, 0) >= 0);
+ assert(sd_rtnl_process(rtnl, NULL) >= 0);
+ }
+}
+
+static void test_container(void) {
+ _cleanup_sd_rtnl_message_unref_ sd_rtnl_message *m = NULL;
+ uint16_t type;
+ void *data;
+
+ assert(sd_rtnl_message_link_new(RTM_NEWLINK, 0, &m) >= 0);
+
+ assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) >= 0);
+ assert(sd_rtnl_message_open_container(m, IFLA_LINKINFO) == -EINVAL);
+ assert(sd_rtnl_message_append_string(m, IFLA_INFO_KIND, "kind") >= 0);
+ assert(sd_rtnl_message_close_container(m) >= 0);
+ assert(sd_rtnl_message_close_container(m) == -EINVAL);
+
+ assert(sd_rtnl_message_read(m, &type, &data) == -EINVAL);
+
+/* TODO: add support for entering containers
+ assert(sd_rtnl_message_read(m, &type, &data) > 0);
+ assert(type == IFLA_INFO_KIND);
+ assert(streq("kind", (char *) data));
+
+ assert(sd_rtnl_message_read(m, &type, &data) == 0);
+*/
+}
+
+static void test_match(void) {
+ _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+
+ assert(sd_rtnl_open(0, &rtnl) >= 0);
+
+ assert(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
+ assert(sd_rtnl_add_match(rtnl, RTM_NEWLINK, &link_handler, NULL) >= 0);
+
+ assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
+ assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 1);
+ assert(sd_rtnl_remove_match(rtnl, RTM_NEWLINK, &link_handler, NULL) == 0);
+}
+
+int main(void) {
+ sd_rtnl *rtnl;
+ sd_rtnl_message *m;
+ sd_rtnl_message *r;
+ void *data;
+ int if_loopback;
+ uint16_t type;
+ unsigned int mtu = 0;
+ unsigned int *mtu_reply;
+
+ test_match();
+
+ test_multiple();
+
+ test_route();
+
+ test_container();
+
+ assert(sd_rtnl_open(0, &rtnl) >= 0);
+ assert(rtnl);
+
+ if_loopback = (int) if_nametoindex("lo");
+ assert(if_loopback > 0);
+
+ test_async(if_loopback);
+
+ test_pipe(if_loopback);
+
+ test_event_loop(if_loopback);
+
+ test_link_configure(rtnl, if_loopback);
+
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, &m) >= 0);
+ assert(m);
+
+ assert(sd_rtnl_message_get_type(m, &type) >= 0);
+ assert(type == RTM_GETLINK);
+
+ assert(sd_rtnl_message_read(m, &type, &data) == 0);
+
+ assert(sd_rtnl_call(rtnl, m, 0, &r) == 1);
+ assert(sd_rtnl_message_get_type(r, &type) >= 0);
+ assert(type == RTM_NEWLINK);
+
+ assert(sd_rtnl_message_read(m, &type, &data) == 0);
+ assert((r = sd_rtnl_message_unref(r)) == NULL);
+
+ assert(sd_rtnl_call(rtnl, m, -1, &r) == -EPERM);
+ assert((m = sd_rtnl_message_unref(m)) == NULL);
+ assert((r = sd_rtnl_message_unref(r)) == NULL);
+
+ assert(sd_rtnl_message_link_new(RTM_GETLINK, if_loopback, &m) >= 0);
+ assert(m);
+
+ assert(sd_rtnl_message_append_u32(m, IFLA_MTU, mtu) >= 0);
+ assert(sd_rtnl_message_read(m, &type, (void **) &mtu_reply) == 1);
+
+ assert(type == IFLA_MTU);
+ assert(*mtu_reply == 0);
+
+ assert(sd_rtnl_message_read(m, &type, &data) == 0);
+
+ assert(sd_rtnl_call(rtnl, m, -1, &r) == 1);
+ while (sd_rtnl_message_read(r, &type, &data) > 0) {
+ switch (type) {
+// case IFLA_MTU:
+// assert(*(unsigned int *) data == 65536);
+// break;
+// case IFLA_QDISC:
+// assert(streq((char *) data, "noqueue"));
+// break;
+ case IFLA_IFNAME:
+ assert(streq((char *) data, "lo"));
+ break;
+ }
+ }
+
+ assert(sd_rtnl_flush(rtnl) >= 0);
+
+ assert((m = sd_rtnl_message_unref(m)) == NULL);
+ assert((r = sd_rtnl_message_unref(r)) == NULL);
+ assert((rtnl = sd_rtnl_unref(rtnl)) == NULL);
+
+ return EXIT_SUCCESS;
+}
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