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sd-dhcp-server: add basic functionality for creating/destroying server instance

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This commit is contained in:
Tom Gundersen 2014-05-24 18:48:41 +02:00
parent fef0e0f3b2
commit b44cd88210
7 changed files with 249 additions and 0 deletions
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1
.gitignore vendored
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@ -141,6 +141,7 @@
/test-date
/test-device-nodes
/test-dhcp-client
/test-dhcp-server
/test-dhcp-option
/test-resolve
/test-ellipsize

12
Makefile.am
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@ -2553,15 +2553,18 @@ libsystemd_network_la_CFLAGS = \
libsystemd_network_la_SOURCES = \
src/systemd/sd-network.h \
src/systemd/sd-dhcp-client.h \
src/systemd/sd-dhcp-server.h \
src/systemd/sd-dhcp-lease.h \
src/systemd/sd-ipv4ll.h \
src/network/sd-network.c \
src/network/network-util.h \
src/libsystemd-network/sd-dhcp-client.c \
src/libsystemd-network/sd-dhcp-server.c \
src/libsystemd-network/dhcp-network.c \
src/libsystemd-network/dhcp-option.c \
src/libsystemd-network/dhcp-packet.c \
src/libsystemd-network/dhcp-internal.h \
src/libsystemd-network/dhcp-server-internal.h \
src/libsystemd-network/dhcp-protocol.h \
src/libsystemd-network/dhcp-lease-internal.h \
src/libsystemd-network/sd-dhcp-lease.c \
@ -2601,6 +2604,14 @@ test_dhcp_client_LDADD = \
libsystemd-internal.la \
libsystemd-shared.la
test_dhcp_server_SOURCES = \
src/libsystemd-network/test-dhcp-server.c
test_dhcp_server_LDADD = \
libsystemd-network.la \
libsystemd-internal.la \
libsystemd-shared.la
test_ipv4ll_SOURCES = \
src/systemd/sd-ipv4ll.h \
src/libsystemd-network/ipv4ll-internal.h \
@ -2615,6 +2626,7 @@ test_ipv4ll_LDADD = \
tests += \
test-dhcp-option \
test-dhcp-client \
test-dhcp-server \
test-ipv4ll
# ------------------------------------------------------------------------------

1
src/libsystemd-network/dhcp-network.c
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@ -117,6 +117,7 @@ int dhcp_network_bind_udp_socket(be32_t address, uint16_t port) {
r = setsockopt(s, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
if (r < 0)
return -errno;
if (address == INADDR_ANY) {
int on = 1;

40
src/libsystemd-network/dhcp-server-internal.h Normal file
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@ -0,0 +1,40 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2013 Intel Corporation. All rights reserved.
Copyright (C) 2014 Tom Gundersen
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 "sd-event.h"
#include "sd-dhcp-server.h"
#include "refcnt.h"
#include "util.h"
#include "log.h"
struct sd_dhcp_server {
RefCount n_ref;
sd_event *event;
int event_priority;
};
DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_server*, sd_dhcp_server_unref);
#define _cleanup_dhcp_server_unref_ _cleanup_(sd_dhcp_server_unrefp)
#define log_dhcp_server(client, fmt, ...) log_meta(LOG_DEBUG, __FILE__, __LINE__, __func__, "DHCP SERVER: " fmt, ##__VA_ARGS__)

92
src/libsystemd-network/sd-dhcp-server.c Normal file
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@ -0,0 +1,92 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2013 Intel Corporation. All rights reserved.
Copyright (C) 2014 Tom Gundersen
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 "sd-dhcp-server.h"
#include "dhcp-server-internal.h"
sd_dhcp_server *sd_dhcp_server_ref(sd_dhcp_server *server) {
if (server)
assert_se(REFCNT_INC(server->n_ref) >= 2);
return server;
}
sd_dhcp_server *sd_dhcp_server_unref(sd_dhcp_server *server) {
if (server && REFCNT_DEC(server->n_ref) <= 0) {
log_dhcp_server(server, "UNREF");
sd_event_unref(server->event);
free(server);
}
return NULL;
}
int sd_dhcp_server_new(sd_dhcp_server **ret) {
_cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL;
assert_return(ret, -EINVAL);
server = new0(sd_dhcp_server, 1);
if (!server)
return -ENOMEM;
server->n_ref = REFCNT_INIT;
*ret = server;
server = NULL;
return 0;
}
int sd_dhcp_server_attach_event(sd_dhcp_server *server, sd_event *event, int priority) {
int r;
assert_return(server, -EINVAL);
assert_return(!server->event, -EBUSY);
if (event)
server->event = sd_event_ref(event);
else {
r = sd_event_default(&server->event);
if (r < 0)
return r;
}
server->event_priority = priority;
return 0;
}
int sd_dhcp_server_detach_event(sd_dhcp_server *server) {
assert_return(server, -EINVAL);
server->event = sd_event_unref(server->event);
return 0;
}
sd_event *sd_dhcp_server_get_event(sd_dhcp_server *server) {
assert_return(server, NULL);
return server->event;
}

62
src/libsystemd-network/test-dhcp-server.c Normal file
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@ -0,0 +1,62 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright (C) 2013 Intel Corporation. All rights reserved.
Copyright (C) 2014 Tom Gundersen
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 <assert.h>
#include <errno.h>
#include "sd-event.h"
#include "event-util.h"
#include "sd-dhcp-server.h"
#include "dhcp-server-internal.h"
static void test_basic(sd_event *event) {
_cleanup_dhcp_server_unref_ sd_dhcp_server *server = NULL;
assert_se(sd_dhcp_server_new(&server) >= 0);
assert_se(server);
assert_se(sd_dhcp_server_attach_event(server, event, 0) >= 0);
assert_se(sd_dhcp_server_attach_event(server, event, 0) == -EBUSY);
assert_se(sd_dhcp_server_get_event(server) == event);
assert_se(sd_dhcp_server_detach_event(server) >= 0);
assert_se(!sd_dhcp_server_get_event(server));
assert_se(sd_dhcp_server_attach_event(server, NULL, 0) >= 0);
assert_se(sd_dhcp_server_attach_event(server, NULL, 0) == -EBUSY);
assert_se(sd_dhcp_server_ref(server) == server);
assert_se(!sd_dhcp_server_unref(server));
}
int main(int argc, char *argv[]) {
_cleanup_event_unref_ sd_event *e;
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
assert_se(sd_event_new(&e) >= 0);
test_basic(e);
return 0;
}

41
src/systemd/sd-dhcp-server.h Normal file
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@ -0,0 +1,41 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#ifndef foosddhcpserverhfoo
#define foosddhcpserverhfoo
/***
This file is part of systemd.
Copyright (C) 2013 Intel Corporation. All rights reserved.
Copyright (C) 2014 Tom Gundersen
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 <netinet/in.h>
#include "sd-event.h"
typedef struct sd_dhcp_server sd_dhcp_server;
sd_dhcp_server *sd_dhcp_server_ref(sd_dhcp_server *server);
sd_dhcp_server *sd_dhcp_server_unref(sd_dhcp_server *server);
int sd_dhcp_server_new(sd_dhcp_server **ret);
int sd_dhcp_server_attach_event(sd_dhcp_server *client, sd_event *event, int priority);
int sd_dhcp_server_detach_event(sd_dhcp_server *client);
sd_event *sd_dhcp_server_get_event(sd_dhcp_server *client);
#endif