[mirror_qemu.git] / net / dump.c

/*
 * QEMU System Emulator
 *
 * Copyright (c) 2003-2008 Fabrice Bellard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "qemu/osdep.h"
#include "clients.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "qemu/error-report.h"
#include "qemu/iov.h"
#include "qemu/log.h"
#include "qemu/timer.h"
#include "qapi/visitor.h"
#include "net/filter.h"

typedef struct DumpState {
    int64_t start_ts;
    int fd;
    int pcap_caplen;
} DumpState;

#define PCAP_MAGIC 0xa1b2c3d4

struct pcap_file_hdr {
    uint32_t magic;
    uint16_t version_major;
    uint16_t version_minor;
    int32_t thiszone;
    uint32_t sigfigs;
    uint32_t snaplen;
    uint32_t linktype;
};

struct pcap_sf_pkthdr {
    struct {
        int32_t tv_sec;
        int32_t tv_usec;
    } ts;
    uint32_t caplen;
    uint32_t len;
};

static ssize_t dump_receive_iov(DumpState *s, const struct iovec *iov, int cnt)
{
    struct pcap_sf_pkthdr hdr;
    int64_t ts;
    int caplen;
    size_t size = iov_size(iov, cnt);
    struct iovec dumpiov[cnt + 1];

    /* Early return in case of previous error. */
    if (s->fd < 0) {
        return size;
    }

    ts = qemu_clock_get_us(QEMU_CLOCK_VIRTUAL);
    caplen = size > s->pcap_caplen ? s->pcap_caplen : size;

    hdr.ts.tv_sec = ts / 1000000 + s->start_ts;
    hdr.ts.tv_usec = ts % 1000000;
    hdr.caplen = caplen;
    hdr.len = size;

    dumpiov[0].iov_base = &hdr;
    dumpiov[0].iov_len = sizeof(hdr);
    cnt = iov_copy(&dumpiov[1], cnt, iov, cnt, 0, caplen);

    if (writev(s->fd, dumpiov, cnt + 1) != sizeof(hdr) + caplen) {
        error_report("network dump write error - stopping dump");
        close(s->fd);
        s->fd = -1;
    }

    return size;
}

static void dump_cleanup(DumpState *s)
{
    close(s->fd);
    s->fd = -1;
}

static int net_dump_state_init(DumpState *s, const char *filename,
                               int len, Error **errp)
{
    struct pcap_file_hdr hdr;
    struct tm tm;
    int fd;

    fd = open(filename, O_CREAT | O_TRUNC | O_WRONLY | O_BINARY, 0644);
    if (fd < 0) {
        error_setg_errno(errp, errno, "-net dump: can't open %s", filename);
        return -1;
    }

    hdr.magic = PCAP_MAGIC;
    hdr.version_major = 2;
    hdr.version_minor = 4;
    hdr.thiszone = 0;
    hdr.sigfigs = 0;
    hdr.snaplen = len;
    hdr.linktype = 1;

    if (write(fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
        error_setg_errno(errp, errno, "-net dump write error");
        close(fd);
        return -1;
    }

    s->fd = fd;
    s->pcap_caplen = len;

    qemu_get_timedate(&tm, 0);
    s->start_ts = mktime(&tm);

    return 0;
}

/* Dumping via VLAN netclient */

struct DumpNetClient {
    NetClientState nc;
    DumpState ds;
};
typedef struct DumpNetClient DumpNetClient;

static ssize_t dumpclient_receive(NetClientState *nc, const uint8_t *buf,
                                  size_t size)
{
    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
    struct iovec iov = {
        .iov_base = (void *)buf,
        .iov_len = size
    };

    return dump_receive_iov(&dc->ds, &iov, 1);
}

static ssize_t dumpclient_receive_iov(NetClientState *nc,
                                      const struct iovec *iov, int cnt)
{
    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);

    return dump_receive_iov(&dc->ds, iov, cnt);
}

static void dumpclient_cleanup(NetClientState *nc)
{
    DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);

    dump_cleanup(&dc->ds);
}

static NetClientInfo net_dump_info = {
    .type = NET_CLIENT_DRIVER_DUMP,
    .size = sizeof(DumpNetClient),
    .receive = dumpclient_receive,
    .receive_iov = dumpclient_receive_iov,
    .cleanup = dumpclient_cleanup,
};

int net_init_dump(const Netdev *netdev, const char *name,
                  NetClientState *peer, Error **errp)
{
    int len, rc;
    const char *file;
    char def_file[128];
    const NetdevDumpOptions *dump;
    NetClientState *nc;
    DumpNetClient *dnc;

    assert(netdev->type == NET_CLIENT_DRIVER_DUMP);
    dump = &netdev->u.dump;

    assert(peer);

    error_report("'-net dump' is deprecated. "
                 "Please use '-object filter-dump' instead.");

    if (dump->has_file) {
        file = dump->file;
    } else {
        int id;
        int ret;

        ret = net_hub_id_for_client(peer, &id);
        assert(ret == 0); /* peer must be on a hub */

        snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", id);
        file = def_file;
    }

    if (dump->has_len) {
        if (dump->len > INT_MAX) {
            error_setg(errp, "invalid length: %"PRIu64, dump->len);
            return -1;
        }
        len = dump->len;
    } else {
        len = 65536;
    }

    nc = qemu_new_net_client(&net_dump_info, peer, "dump", name);
    snprintf(nc->info_str, sizeof(nc->info_str),
             "dump to %s (len=%d)", file, len);

    dnc = DO_UPCAST(DumpNetClient, nc, nc);
    rc = net_dump_state_init(&dnc->ds, file, len, errp);
    if (rc) {
        qemu_del_net_client(nc);
    }
    return rc;
}

/* Dumping via filter */

#define TYPE_FILTER_DUMP "filter-dump"

#define FILTER_DUMP(obj) \
    OBJECT_CHECK(NetFilterDumpState, (obj), TYPE_FILTER_DUMP)

struct NetFilterDumpState {
    NetFilterState nfs;
    DumpState ds;
    char *filename;
    uint32_t maxlen;
};
typedef struct NetFilterDumpState NetFilterDumpState;

static ssize_t filter_dump_receive_iov(NetFilterState *nf, NetClientState *sndr,
                                       unsigned flags, const struct iovec *iov,
                                       int iovcnt, NetPacketSent *sent_cb)
{
    NetFilterDumpState *nfds = FILTER_DUMP(nf);

    dump_receive_iov(&nfds->ds, iov, iovcnt);
    return 0;
}

static void filter_dump_cleanup(NetFilterState *nf)
{
    NetFilterDumpState *nfds = FILTER_DUMP(nf);

    dump_cleanup(&nfds->ds);
}

static void filter_dump_setup(NetFilterState *nf, Error **errp)
{
    NetFilterDumpState *nfds = FILTER_DUMP(nf);

    if (!nfds->filename) {
        error_setg(errp, "dump filter needs 'file' property set!");
        return;
    }

    net_dump_state_init(&nfds->ds, nfds->filename, nfds->maxlen, errp);
}

static void filter_dump_get_maxlen(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
{
    NetFilterDumpState *nfds = FILTER_DUMP(obj);
    uint32_t value = nfds->maxlen;

    visit_type_uint32(v, name, &value, errp);
}

static void filter_dump_set_maxlen(Object *obj, Visitor *v, const char *name,
                                   void *opaque, Error **errp)
{
    NetFilterDumpState *nfds = FILTER_DUMP(obj);
    Error *local_err = NULL;
    uint32_t value;

    visit_type_uint32(v, name, &value, &local_err);
    if (local_err) {
        goto out;
    }
    if (value == 0) {
        error_setg(&local_err, "Property '%s.%s' doesn't take value '%u'",
                   object_get_typename(obj), name, value);
        goto out;
    }
    nfds->maxlen = value;

out:
    error_propagate(errp, local_err);
}

static char *file_dump_get_filename(Object *obj, Error **errp)
{
    NetFilterDumpState *nfds = FILTER_DUMP(obj);

    return g_strdup(nfds->filename);
}

static void file_dump_set_filename(Object *obj, const char *value, Error **errp)
{
   NetFilterDumpState *nfds = FILTER_DUMP(obj);

    g_free(nfds->filename);
    nfds->filename = g_strdup(value);
}

static void filter_dump_instance_init(Object *obj)
{
    NetFilterDumpState *nfds = FILTER_DUMP(obj);

    nfds->maxlen = 65536;

    object_property_add(obj, "maxlen", "uint32", filter_dump_get_maxlen,
                        filter_dump_set_maxlen, NULL, NULL, NULL);
    object_property_add_str(obj, "file", file_dump_get_filename,
                            file_dump_set_filename, NULL);
}

static void filter_dump_instance_finalize(Object *obj)
{
    NetFilterDumpState *nfds = FILTER_DUMP(obj);

    g_free(nfds->filename);
}

static void filter_dump_class_init(ObjectClass *oc, void *data)
{
    NetFilterClass *nfc = NETFILTER_CLASS(oc);

    nfc->setup = filter_dump_setup;
    nfc->cleanup = filter_dump_cleanup;
    nfc->receive_iov = filter_dump_receive_iov;
}

static const TypeInfo filter_dump_info = {
    .name = TYPE_FILTER_DUMP,
    .parent = TYPE_NETFILTER,
    .class_init = filter_dump_class_init,
    .instance_init = filter_dump_instance_init,
    .instance_finalize = filter_dump_instance_finalize,
    .instance_size = sizeof(NetFilterDumpState),
};

static void filter_dump_register_types(void)
{
    type_register_static(&filter_dump_info);
}

type_init(filter_dump_register_types);
Commit	Line	Data
1abecf77 MM	1	/*
	2	* QEMU System Emulator
	3	*
	4	* Copyright (c) 2003-2008 Fabrice Bellard
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24
2744d920	25	#include "qemu/osdep.h"
a245fc18	26	#include "clients.h"
da34e65c	27	#include "qapi/error.h"
1abecf77	28	#include "qemu-common.h"
1de7afc9	29	#include "qemu/error-report.h"
43192fcc	30	#include "qemu/iov.h"
1de7afc9 PB	31	#include "qemu/log.h"
1de7afc9 PB	32	#include "qemu/timer.h"
9d3e12e8 TH	33	#include "qapi/visitor.h"
9d3e12e8 TH	34	#include "net/filter.h"
1abecf77 MM	35
1abecf77 MM	36	typedef struct DumpState {
0fa29915	37	int64_t start_ts;
1abecf77 MM	38	int fd;
	39	int pcap_caplen;
	40	} DumpState;
	41
	42	#define PCAP_MAGIC 0xa1b2c3d4
	43
	44	struct pcap_file_hdr {
	45	uint32_t magic;
	46	uint16_t version_major;
	47	uint16_t version_minor;
	48	int32_t thiszone;
	49	uint32_t sigfigs;
	50	uint32_t snaplen;
	51	uint32_t linktype;
	52	};
	53
	54	struct pcap_sf_pkthdr {
	55	struct {
	56	int32_t tv_sec;
	57	int32_t tv_usec;
	58	} ts;
	59	uint32_t caplen;
	60	uint32_t len;
	61	};
	62
75310e34	63	static ssize_t dump_receive_iov(DumpState s, const struct iovec iov, int cnt)
1abecf77	64	{
1abecf77 MM	65	struct pcap_sf_pkthdr hdr;
	66	int64_t ts;
	67	int caplen;
43192fcc TH	68	size_t size = iov_size(iov, cnt);
43192fcc TH	69	struct iovec dumpiov[cnt + 1];
1abecf77 MM	70
	71	/* Early return in case of previous error. */
	72	if (s->fd < 0) {
	73	return size;
	74	}
	75
ab60b748	76	ts = qemu_clock_get_us(QEMU_CLOCK_VIRTUAL);
1abecf77 MM	77	caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
1abecf77 MM	78
0fa29915	79	hdr.ts.tv_sec = ts / 1000000 + s->start_ts;
1abecf77 MM	80	hdr.ts.tv_usec = ts % 1000000;
	81	hdr.caplen = caplen;
	82	hdr.len = size;
43192fcc TH	83
	84	dumpiov[0].iov_base = &hdr;
	85	dumpiov[0].iov_len = sizeof(hdr);
	86	cnt = iov_copy(&dumpiov[1], cnt, iov, cnt, 0, caplen);
	87
	88	if (writev(s->fd, dumpiov, cnt + 1) != sizeof(hdr) + caplen) {
34f22fc0	89	error_report("network dump write error - stopping dump");
1abecf77 MM	90	close(s->fd);
	91	s->fd = -1;
	92	}
	93
	94	return size;
	95	}
	96
75310e34	97	static void dump_cleanup(DumpState *s)
1abecf77	98	{
1abecf77	99	close(s->fd);
75310e34	100	s->fd = -1;
1abecf77 MM	101	}
1abecf77 MM	102
7bc3074c TH	103	static int net_dump_state_init(DumpState s, const char filename,
7bc3074c TH	104	int len, Error **errp)
1abecf77 MM	105	{
1abecf77 MM	106	struct pcap_file_hdr hdr;
0fa29915	107	struct tm tm;
731d5856	108	int fd;
1abecf77	109
6514ed52	110	fd = open(filename, O_CREAT \| O_TRUNC \| O_WRONLY \| O_BINARY, 0644);
731d5856	111	if (fd < 0) {
3791f83c	112	error_setg_errno(errp, errno, "-net dump: can't open %s", filename);
1abecf77 MM	113	return -1;
	114	}
	115
1abecf77 MM	116	hdr.magic = PCAP_MAGIC;
	117	hdr.version_major = 2;
	118	hdr.version_minor = 4;
	119	hdr.thiszone = 0;
	120	hdr.sigfigs = 0;
731d5856	121	hdr.snaplen = len;
1abecf77 MM	122	hdr.linktype = 1;
1abecf77 MM	123
731d5856	124	if (write(fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
3791f83c	125	error_setg_errno(errp, errno, "-net dump write error");
731d5856	126	close(fd);
1abecf77 MM	127	return -1;
	128	}
	129
731d5856 MM	130	s->fd = fd;
	131	s->pcap_caplen = len;
	132
0fa29915 HP	133	qemu_get_timedate(&tm, 0);
	134	s->start_ts = mktime(&tm);
	135
1abecf77 MM	136	return 0;
	137	}
	138
75310e34 TH	139	/* Dumping via VLAN netclient */
	140
	141	struct DumpNetClient {
	142	NetClientState nc;
	143	DumpState ds;
	144	};
	145	typedef struct DumpNetClient DumpNetClient;
	146
	147	static ssize_t dumpclient_receive(NetClientState nc, const uint8_t buf,
	148	size_t size)
	149	{
	150	DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
	151	struct iovec iov = {
	152	.iov_base = (void *)buf,
	153	.iov_len = size
	154	};
	155
	156	return dump_receive_iov(&dc->ds, &iov, 1);
	157	}
	158
	159	static ssize_t dumpclient_receive_iov(NetClientState *nc,
	160	const struct iovec *iov, int cnt)
	161	{
	162	DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
	163
	164	return dump_receive_iov(&dc->ds, iov, cnt);
	165	}
	166
	167	static void dumpclient_cleanup(NetClientState *nc)
	168	{
	169	DumpNetClient *dc = DO_UPCAST(DumpNetClient, nc, nc);
	170
	171	dump_cleanup(&dc->ds);
	172	}
	173
	174	static NetClientInfo net_dump_info = {
f394b2e2	175	.type = NET_CLIENT_DRIVER_DUMP,
75310e34 TH	176	.size = sizeof(DumpNetClient),
	177	.receive = dumpclient_receive,
	178	.receive_iov = dumpclient_receive_iov,
	179	.cleanup = dumpclient_cleanup,
	180	};
	181
cebea510	182	int net_init_dump(const Netdev netdev, const char name,
a30ecde6	183	NetClientState peer, Error *errp)
1abecf77	184	{
7bc3074c	185	int len, rc;
1abecf77 MM	186	const char *file;
1abecf77 MM	187	char def_file[128];
848040d1	188	const NetdevDumpOptions *dump;
7bc3074c	189	NetClientState *nc;
75310e34	190	DumpNetClient *dnc;
848040d1	191
f394b2e2 EB	192	assert(netdev->type == NET_CLIENT_DRIVER_DUMP);
f394b2e2 EB	193	dump = &netdev->u.dump;
1abecf77	194
d33d93b2	195	assert(peer);
1abecf77	196
f5ab20a4 TH	197	error_report("'-net dump' is deprecated. "
	198	"Please use '-object filter-dump' instead.");
	199
848040d1 LE	200	if (dump->has_file) {
	201	file = dump->file;
	202	} else {
d33d93b2 SH	203	int id;
	204	int ret;
	205
	206	ret = net_hub_id_for_client(peer, &id);
	207	assert(ret == 0); /* peer must be on a hub */
	208
	209	snprintf(def_file, sizeof(def_file), "qemu-vlan%d.pcap", id);
1abecf77 MM	210	file = def_file;
	211	}
	212
848040d1 LE	213	if (dump->has_len) {
848040d1 LE	214	if (dump->len > INT_MAX) {
3791f83c	215	error_setg(errp, "invalid length: %"PRIu64, dump->len);
848040d1 LE	216	return -1;
	217	}
	218	len = dump->len;
	219	} else {
	220	len = 65536;
	221	}
1abecf77	222
7bc3074c TH	223	nc = qemu_new_net_client(&net_dump_info, peer, "dump", name);
	224	snprintf(nc->info_str, sizeof(nc->info_str),
	225	"dump to %s (len=%d)", file, len);
	226
75310e34 TH	227	dnc = DO_UPCAST(DumpNetClient, nc, nc);
75310e34 TH	228	rc = net_dump_state_init(&dnc->ds, file, len, errp);
7bc3074c TH	229	if (rc) {
	230	qemu_del_net_client(nc);
	231	}
	232	return rc;
1abecf77	233	}
9d3e12e8 TH	234
	235	/* Dumping via filter */
	236
	237	#define TYPE_FILTER_DUMP "filter-dump"
	238
	239	#define FILTER_DUMP(obj) \
	240	OBJECT_CHECK(NetFilterDumpState, (obj), TYPE_FILTER_DUMP)
	241
	242	struct NetFilterDumpState {
	243	NetFilterState nfs;
	244	DumpState ds;
	245	char *filename;
	246	uint32_t maxlen;
	247	};
	248	typedef struct NetFilterDumpState NetFilterDumpState;
	249
	250	static ssize_t filter_dump_receive_iov(NetFilterState nf, NetClientState sndr,
	251	unsigned flags, const struct iovec *iov,
	252	int iovcnt, NetPacketSent *sent_cb)
	253	{
	254	NetFilterDumpState *nfds = FILTER_DUMP(nf);
	255
	256	dump_receive_iov(&nfds->ds, iov, iovcnt);
	257	return 0;
	258	}
	259
	260	static void filter_dump_cleanup(NetFilterState *nf)
	261	{
	262	NetFilterDumpState *nfds = FILTER_DUMP(nf);
	263
	264	dump_cleanup(&nfds->ds);
	265	}
	266
	267	static void filter_dump_setup(NetFilterState nf, Error *errp)
	268	{
	269	NetFilterDumpState *nfds = FILTER_DUMP(nf);
	270
	271	if (!nfds->filename) {
	272	error_setg(errp, "dump filter needs 'file' property set!");
	273	return;
	274	}
	275
	276	net_dump_state_init(&nfds->ds, nfds->filename, nfds->maxlen, errp);
	277	}
	278
d7bce999 EB	279	static void filter_dump_get_maxlen(Object obj, Visitor v, const char *name,
d7bce999 EB	280	void opaque, Error *errp)
9d3e12e8 TH	281	{
	282	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	283	uint32_t value = nfds->maxlen;
	284
51e72bc1	285	visit_type_uint32(v, name, &value, errp);
9d3e12e8 TH	286	}
9d3e12e8 TH	287
d7bce999 EB	288	static void filter_dump_set_maxlen(Object obj, Visitor v, const char *name,
d7bce999 EB	289	void opaque, Error *errp)
9d3e12e8 TH	290	{
	291	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	292	Error *local_err = NULL;
	293	uint32_t value;
	294
51e72bc1	295	visit_type_uint32(v, name, &value, &local_err);
9d3e12e8 TH	296	if (local_err) {
	297	goto out;
	298	}
	299	if (value == 0) {
	300	error_setg(&local_err, "Property '%s.%s' doesn't take value '%u'",
	301	object_get_typename(obj), name, value);
	302	goto out;
	303	}
	304	nfds->maxlen = value;
	305
	306	out:
	307	error_propagate(errp, local_err);
	308	}
	309
	310	static char file_dump_get_filename(Object obj, Error **errp)
	311	{
	312	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	313
	314	return g_strdup(nfds->filename);
	315	}
	316
	317	static void file_dump_set_filename(Object obj, const char value, Error **errp)
	318	{
	319	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	320
	321	g_free(nfds->filename);
	322	nfds->filename = g_strdup(value);
	323	}
	324
	325	static void filter_dump_instance_init(Object *obj)
	326	{
	327	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	328
	329	nfds->maxlen = 65536;
	330
1e507bb0	331	object_property_add(obj, "maxlen", "uint32", filter_dump_get_maxlen,
9d3e12e8 TH	332	filter_dump_set_maxlen, NULL, NULL, NULL);
	333	object_property_add_str(obj, "file", file_dump_get_filename,
	334	file_dump_set_filename, NULL);
	335	}
	336
b50c7d45 LZ	337	static void filter_dump_instance_finalize(Object *obj)
	338	{
	339	NetFilterDumpState *nfds = FILTER_DUMP(obj);
	340
	341	g_free(nfds->filename);
	342	}
	343
9d3e12e8 TH	344	static void filter_dump_class_init(ObjectClass oc, void data)
	345	{
	346	NetFilterClass *nfc = NETFILTER_CLASS(oc);
	347
	348	nfc->setup = filter_dump_setup;
	349	nfc->cleanup = filter_dump_cleanup;
	350	nfc->receive_iov = filter_dump_receive_iov;
	351	}
	352
	353	static const TypeInfo filter_dump_info = {
	354	.name = TYPE_FILTER_DUMP,
	355	.parent = TYPE_NETFILTER,
	356	.class_init = filter_dump_class_init,
	357	.instance_init = filter_dump_instance_init,
b50c7d45	358	.instance_finalize = filter_dump_instance_finalize,
9d3e12e8 TH	359	.instance_size = sizeof(NetFilterDumpState),
	360	};
	361
	362	static void filter_dump_register_types(void)
	363	{
	364	type_register_static(&filter_dump_info);
	365	}
	366
	367	type_init(filter_dump_register_types);