[thirdparty/systemd.git] / src / network / netdev / vxlan.c

/* SPDX-License-Identifier: LGPL-2.1+ */
/***
  This file is part of systemd.

  Copyright 2014 Susant Sahani
***/

#include <net/if.h>

#include "sd-netlink.h"

#include "conf-parser.h"
#include "alloc-util.h"
#include "extract-word.h"
#include "string-util.h"
#include "strv.h"
#include "parse-util.h"
#include "missing.h"

#include "networkd-link.h"
#include "netdev/vxlan.h"

static int netdev_vxlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
        VxLan *v;
        int r;

        assert(netdev);
        assert(link);
        assert(m);

        v = VXLAN(netdev);

        assert(v);

        if (v->id <= VXLAN_VID_MAX) {
                r = sd_netlink_message_append_u32(m, IFLA_VXLAN_ID, v->id);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m");
        }

        if (!in_addr_is_null(v->remote_family, &v->remote)) {

                if (v->remote_family == AF_INET)
                        r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->remote.in);
                else
                        r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_GROUP6, &v->remote.in6);

                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m");

        }

        if (!in_addr_is_null(v->local_family, &v->local)) {

                if (v->local_family == AF_INET)
                        r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_LOCAL, &v->local.in);
                else
                        r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_LOCAL6, &v->local.in6);

                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LOCAL attribute: %m");

        }

        r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LINK attribute: %m");

        if (v->ttl) {
                r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TTL, v->ttl);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TTL attribute: %m");
        }

        if (v->tos) {
                r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TOS, v->tos);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TOS attribute: %m");
        }

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_LEARNING, v->learning);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LEARNING attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_RSC, v->route_short_circuit);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_RSC attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_PROXY, v->arp_proxy);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PROXY attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L2MISS, v->l2miss);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L2MISS attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L3MISS, v->l3miss);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L3MISS attribute: %m");

        if (v->fdb_ageing) {
                r = sd_netlink_message_append_u32(m, IFLA_VXLAN_AGEING, v->fdb_ageing / USEC_PER_SEC);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_AGEING attribute: %m");
        }

        if (v->max_fdb) {
                r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LIMIT, v->max_fdb);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LIMIT attribute: %m");
        }

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_CSUM attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_REMCSUM_TX, v->remote_csum_tx);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_REMCSUM_TX attribute: %m");

        r = sd_netlink_message_append_u8(m, IFLA_VXLAN_REMCSUM_RX, v->remote_csum_rx);
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_REMCSUM_RX attribute: %m");

        r = sd_netlink_message_append_u16(m, IFLA_VXLAN_PORT, htobe16(v->dest_port));
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT attribute: %m");

        if (v->port_range.low || v->port_range.high) {
                struct ifla_vxlan_port_range port_range;

                port_range.low = htobe16(v->port_range.low);
                port_range.high = htobe16(v->port_range.high);

                r = sd_netlink_message_append_data(m, IFLA_VXLAN_PORT_RANGE, &port_range, sizeof(port_range));
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT_RANGE attribute: %m");
        }

        r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LABEL, htobe32(v->flow_label));
        if (r < 0)
                return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LABEL attribute: %m");

        if (v->group_policy) {
                r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP);
                if (r < 0)
                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GBP attribute: %m");
        }

        return r;
}

int config_parse_vxlan_address(const char *unit,
                               const char *filename,
                               unsigned line,
                               const char *section,
                               unsigned section_line,
                               const char *lvalue,
                               int ltype,
                               const char *rvalue,
                               void *data,
                               void *userdata) {
        VxLan *v = userdata;
        union in_addr_union *addr = data, buffer;
        int r, f;

        assert(filename);
        assert(lvalue);
        assert(rvalue);
        assert(data);

        r = in_addr_from_string_auto(rvalue, &f, &buffer);
        if (r < 0) {
                log_syntax(unit, LOG_ERR, filename, line, r, "vxlan '%s' address is invalid, ignoring assignment: %s", lvalue, rvalue);
                return 0;
        }

        r = in_addr_is_multicast(f, &buffer);

        if (streq(lvalue, "Group")) {
                if (r <= 0) {
                        log_syntax(unit, LOG_ERR, filename, line, 0, "vxlan %s invalid multicast address, ignoring assignment: %s", lvalue, rvalue);
                        return 0;
                }

                v->remote_family = f;
        } else {
                if (r > 0) {
                        log_syntax(unit, LOG_ERR, filename, line, 0, "vxlan %s cannot be a multicast address, ignoring assignment: %s", lvalue, rvalue);
                        return 0;
                }

                if (streq(lvalue, "Remote"))
                        v->remote_family = f;
                else
                        v->local_family = f;
        }

        *addr = buffer;

        return 0;
}

int config_parse_port_range(const char *unit,
                            const char *filename,
                            unsigned line,
                            const char *section,
                            unsigned section_line,
                            const char *lvalue,
                            int ltype,
                            const char *rvalue,
                            void *data,
                            void *userdata) {
        _cleanup_free_ char *word = NULL;
        VxLan *v = userdata;
        unsigned low, high;
        int r;

        assert(filename);
        assert(lvalue);
        assert(rvalue);
        assert(data);

        r = extract_first_word(&rvalue, &word, NULL, 0);
        if (r < 0) {
                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract VXLAN port range, ignoring: %s", rvalue);
                return 0;
        }

        if (r == 0)
                return 0;

        r = parse_range(word, &low, &high);
        if (r < 0) {
                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN port range '%s'", word);
                return 0;
        }

        if (low <= 0 || low > 65535 || high <= 0 || high > 65535) {
                log_syntax(unit, LOG_ERR, filename, line, r,
                           "Failed to parse VXLAN port range '%s'. Port should be greater than 0 and less than 65535.", word);
                return 0;
        }

        if (high < low) {
                log_syntax(unit, LOG_ERR, filename, line, r,
                           "Failed to parse VXLAN port range '%s'. Port range %u .. %u not valid", word, low, high);
                return 0;
        }

        v->port_range.low = low;
        v->port_range.high = high;

        return 0;
}

int config_parse_flow_label(const char *unit,
                            const char *filename,
                            unsigned line,
                            const char *section,
                            unsigned section_line,
                            const char *lvalue,
                            int ltype,
                            const char *rvalue,
                            void *data,
                            void *userdata) {
        VxLan *v = userdata;
        unsigned f;
        int r;

        assert(filename);
        assert(lvalue);
        assert(rvalue);
        assert(data);

        r = safe_atou(rvalue, &f);
        if (r < 0) {
                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN flow label '%s'.", rvalue);
                return 0;
        }

        if (f & ~VXLAN_FLOW_LABEL_MAX_MASK) {
                log_syntax(unit, LOG_ERR, filename, line, r,
                           "VXLAN flow label '%s' not valid. Flow label range should be [0-1048575].", rvalue);
                return 0;
        }

        v->flow_label = f;

        return 0;
}

static int netdev_vxlan_verify(NetDev *netdev, const char *filename) {
        VxLan *v = VXLAN(netdev);

        assert(netdev);
        assert(v);
        assert(filename);

        if (v->id > VXLAN_VID_MAX) {
                log_warning("VXLAN without valid Id configured in %s. Ignoring", filename);
                return -EINVAL;
        }

        return 0;
}

static void vxlan_init(NetDev *netdev) {
        VxLan *v;

        assert(netdev);

        v = VXLAN(netdev);

        assert(v);

        v->id = VXLAN_VID_MAX + 1;
        v->learning = true;
        v->udpcsum = false;
        v->udp6zerocsumtx = false;
        v->udp6zerocsumrx = false;
}

const NetDevVTable vxlan_vtable = {
        .object_size = sizeof(VxLan),
        .init = vxlan_init,
        .sections = "Match\0NetDev\0VXLAN\0",
        .fill_message_create = netdev_vxlan_fill_message_create,
        .create_type = NETDEV_CREATE_STACKED,
        .config_verify = netdev_vxlan_verify,
};
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
326cb406	2	/***
11a15892	3	This file is part of systemd.
326cb406	4
11a15892	5	Copyright 2014 Susant Sahani
326cb406 SS	6	***/
326cb406 SS	7
326cb406 SS	8	#include <net/if.h>
326cb406 SS	9
1c4baffc	10	#include "sd-netlink.h"
cf0fbc49	11
85a8eeee	12	#include "conf-parser.h"
ea0288d1	13	#include "alloc-util.h"
634f0f98	14	#include "extract-word.h"
d35e5d37 SS	15	#include "string-util.h"
d35e5d37 SS	16	#include "strv.h"
ea0288d1	17	#include "parse-util.h"
81577dc2	18	#include "missing.h"
634f0f98	19
cf0fbc49	20	#include "networkd-link.h"
441e9ae4	21	#include "netdev/vxlan.h"
326cb406	22
1c4baffc	23	static int netdev_vxlan_fill_message_create(NetDev netdev, Link link, sd_netlink_message *m) {
c2353b2f	24	VxLan *v;
326cb406 SS	25	int r;
326cb406 SS	26
3be1d7e0	27	assert(netdev);
326cb406	28	assert(link);
326cb406 SS	29	assert(m);
326cb406 SS	30
c2353b2f SS	31	v = VXLAN(netdev);
	32
	33	assert(v);
326cb406	34
aa9f1140	35	if (v->id <= VXLAN_VID_MAX) {
1c4baffc	36	r = sd_netlink_message_append_u32(m, IFLA_VXLAN_ID, v->id);
f545680e SS	37	if (r < 0)
f545680e SS	38	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_ID attribute: %m");
326cb406 SS	39	}
326cb406 SS	40
d35e5d37 SS	41	if (!in_addr_is_null(v->remote_family, &v->remote)) {
	42
	43	if (v->remote_family == AF_INET)
	44	r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_GROUP, &v->remote.in);
	45	else
	46	r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_GROUP6, &v->remote.in6);
	47
	48	if (r < 0)
	49	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GROUP attribute: %m");
	50
	51	}
	52
	53	if (!in_addr_is_null(v->local_family, &v->local)) {
	54
	55	if (v->local_family == AF_INET)
	56	r = sd_netlink_message_append_in_addr(m, IFLA_VXLAN_LOCAL, &v->local.in);
	57	else
	58	r = sd_netlink_message_append_in6_addr(m, IFLA_VXLAN_LOCAL6, &v->local.in6);
	59
	60	if (r < 0)
	61	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LOCAL attribute: %m");
	62
	63	}
326cb406	64
1c4baffc	65	r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LINK, link->ifindex);
f545680e SS	66	if (r < 0)
f545680e SS	67	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LINK attribute: %m");
326cb406	68
9ed794a3	69	if (v->ttl) {
1c4baffc	70	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TTL, v->ttl);
f545680e SS	71	if (r < 0)
f545680e SS	72	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TTL attribute: %m");
326cb406 SS	73	}
326cb406 SS	74
9ed794a3	75	if (v->tos) {
1c4baffc	76	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_TOS, v->tos);
f545680e SS	77	if (r < 0)
f545680e SS	78	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_TOS attribute: %m");
326cb406 SS	79	}
326cb406 SS	80
1c4baffc	81	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_LEARNING, v->learning);
f545680e SS	82	if (r < 0)
f545680e SS	83	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LEARNING attribute: %m");
326cb406	84
1c4baffc	85	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_RSC, v->route_short_circuit);
f545680e SS	86	if (r < 0)
f545680e SS	87	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_RSC attribute: %m");
85a8eeee	88
1c4baffc	89	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_PROXY, v->arp_proxy);
f545680e SS	90	if (r < 0)
f545680e SS	91	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PROXY attribute: %m");
85a8eeee	92
1c4baffc	93	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L2MISS, v->l2miss);
f545680e SS	94	if (r < 0)
f545680e SS	95	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L2MISS attribute: %m");
85a8eeee	96
1c4baffc	97	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_L3MISS, v->l3miss);
f545680e SS	98	if (r < 0)
f545680e SS	99	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_L3MISS attribute: %m");
85a8eeee	100
9ed794a3	101	if (v->fdb_ageing) {
1c4baffc	102	r = sd_netlink_message_append_u32(m, IFLA_VXLAN_AGEING, v->fdb_ageing / USEC_PER_SEC);
f545680e SS	103	if (r < 0)
f545680e SS	104	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_AGEING attribute: %m");
85a8eeee SS	105	}
85a8eeee SS	106
3dbcf579 SS	107	if (v->max_fdb) {
	108	r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LIMIT, v->max_fdb);
	109	if (r < 0)
	110	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LIMIT attribute: %m");
	111	}
	112
1c4baffc	113	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_CSUM, v->udpcsum);
f545680e SS	114	if (r < 0)
f545680e SS	115	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_CSUM attribute: %m");
cffacc74	116
1c4baffc	117	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, v->udp6zerocsumtx);
f545680e SS	118	if (r < 0)
f545680e SS	119	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_TX attribute: %m");
cffacc74	120
1c4baffc	121	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, v->udp6zerocsumrx);
f545680e SS	122	if (r < 0)
f545680e SS	123	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_UDP_ZERO_CSUM6_RX attribute: %m");
cffacc74	124
16441027 SS	125	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_REMCSUM_TX, v->remote_csum_tx);
	126	if (r < 0)
	127	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_REMCSUM_TX attribute: %m");
	128
	129	r = sd_netlink_message_append_u8(m, IFLA_VXLAN_REMCSUM_RX, v->remote_csum_rx);
	130	if (r < 0)
	131	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_REMCSUM_RX attribute: %m");
	132
ea0288d1 SS	133	r = sd_netlink_message_append_u16(m, IFLA_VXLAN_PORT, htobe16(v->dest_port));
	134	if (r < 0)
	135	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT attribute: %m");
	136
	137	if (v->port_range.low \|\| v->port_range.high) {
	138	struct ifla_vxlan_port_range port_range;
	139
	140	port_range.low = htobe16(v->port_range.low);
	141	port_range.high = htobe16(v->port_range.high);
	142
	143	r = sd_netlink_message_append_data(m, IFLA_VXLAN_PORT_RANGE, &port_range, sizeof(port_range));
	144	if (r < 0)
	145	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_PORT_RANGE attribute: %m");
	146	}
	147
d8653945 SS	148	r = sd_netlink_message_append_u32(m, IFLA_VXLAN_LABEL, htobe32(v->flow_label));
	149	if (r < 0)
	150	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_LABEL attribute: %m");
	151
ea84fd5c SS	152	if (v->group_policy) {
	153	r = sd_netlink_message_append_flag(m, IFLA_VXLAN_GBP);
	154	if (r < 0)
	155	return log_netdev_error_errno(netdev, r, "Could not append IFLA_VXLAN_GBP attribute: %m");
	156	}
	157
326cb406 SS	158	return r;
	159	}
	160
d35e5d37 SS	161	int config_parse_vxlan_address(const char *unit,
	162	const char *filename,
	163	unsigned line,
	164	const char *section,
	165	unsigned section_line,
	166	const char *lvalue,
	167	int ltype,
	168	const char *rvalue,
	169	void *data,
	170	void *userdata) {
85a8eeee SS	171	VxLan *v = userdata;
	172	union in_addr_union *addr = data, buffer;
	173	int r, f;
	174
	175	assert(filename);
	176	assert(lvalue);
	177	assert(rvalue);
	178	assert(data);
	179
	180	r = in_addr_from_string_auto(rvalue, &f, &buffer);
	181	if (r < 0) {
d35e5d37	182	log_syntax(unit, LOG_ERR, filename, line, r, "vxlan '%s' address is invalid, ignoring assignment: %s", lvalue, rvalue);
85a8eeee SS	183	return 0;
	184	}
	185
d35e5d37 SS	186	r = in_addr_is_multicast(f, &buffer);
d35e5d37 SS	187
bf443be9	188	if (streq(lvalue, "Group")) {
d35e5d37	189	if (r <= 0) {
87ac8d99	190	log_syntax(unit, LOG_ERR, filename, line, 0, "vxlan %s invalid multicast address, ignoring assignment: %s", lvalue, rvalue);
d35e5d37 SS	191	return 0;
	192	}
	193
	194	v->remote_family = f;
	195	} else {
	196	if (r > 0) {
87ac8d99	197	log_syntax(unit, LOG_ERR, filename, line, 0, "vxlan %s cannot be a multicast address, ignoring assignment: %s", lvalue, rvalue);
d35e5d37 SS	198	return 0;
	199	}
	200
bf443be9 SS	201	if (streq(lvalue, "Remote"))
	202	v->remote_family = f;
	203	else
	204	v->local_family = f;
85a8eeee SS	205	}
85a8eeee SS	206
85a8eeee SS	207	*addr = buffer;
	208
	209	return 0;
	210	}
	211
ea0288d1 SS	212	int config_parse_port_range(const char *unit,
	213	const char *filename,
	214	unsigned line,
	215	const char *section,
	216	unsigned section_line,
	217	const char *lvalue,
	218	int ltype,
	219	const char *rvalue,
	220	void *data,
	221	void *userdata) {
	222	_cleanup_free_ char *word = NULL;
	223	VxLan *v = userdata;
	224	unsigned low, high;
	225	int r;
	226
	227	assert(filename);
	228	assert(lvalue);
	229	assert(rvalue);
	230	assert(data);
	231
	232	r = extract_first_word(&rvalue, &word, NULL, 0);
	233	if (r < 0) {
	234	log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract VXLAN port range, ignoring: %s", rvalue);
	235	return 0;
	236	}
	237
	238	if (r == 0)
	239	return 0;
	240
	241	r = parse_range(word, &low, &high);
	242	if (r < 0) {
	243	log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN port range '%s'", word);
	244	return 0;
	245	}
	246
	247	if (low <= 0 \|\| low > 65535 \|\| high <= 0 \|\| high > 65535) {
	248	log_syntax(unit, LOG_ERR, filename, line, r,
	249	"Failed to parse VXLAN port range '%s'. Port should be greater than 0 and less than 65535.", word);
	250	return 0;
	251	}
	252
	253	if (high < low) {
	254	log_syntax(unit, LOG_ERR, filename, line, r,
	255	"Failed to parse VXLAN port range '%s'. Port range %u .. %u not valid", word, low, high);
	256	return 0;
	257	}
	258
	259	v->port_range.low = low;
	260	v->port_range.high = high;
	261
	262	return 0;
	263	}
	264
d8653945 SS	265	int config_parse_flow_label(const char *unit,
	266	const char *filename,
	267	unsigned line,
	268	const char *section,
	269	unsigned section_line,
	270	const char *lvalue,
	271	int ltype,
	272	const char *rvalue,
	273	void *data,
	274	void *userdata) {
	275	VxLan *v = userdata;
	276	unsigned f;
	277	int r;
	278
	279	assert(filename);
	280	assert(lvalue);
	281	assert(rvalue);
	282	assert(data);
	283
	284	r = safe_atou(rvalue, &f);
	285	if (r < 0) {
	286	log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse VXLAN flow label '%s'.", rvalue);
	287	return 0;
	288	}
	289
	290	if (f & ~VXLAN_FLOW_LABEL_MAX_MASK) {
	291	log_syntax(unit, LOG_ERR, filename, line, r,
	292	"VXLAN flow label '%s' not valid. Flow label range should be [0-1048575].", rvalue);
	293	return 0;
	294	}
	295
	296	v->flow_label = f;
	297
	298	return 0;
	299	}
	300
3be1d7e0	301	static int netdev_vxlan_verify(NetDev netdev, const char filename) {
aa9f1140 TG	302	VxLan *v = VXLAN(netdev);
aa9f1140 TG	303
326cb406	304	assert(netdev);
aa9f1140	305	assert(v);
3be1d7e0	306	assert(filename);
326cb406	307
aa9f1140	308	if (v->id > VXLAN_VID_MAX) {
3be1d7e0 TG	309	log_warning("VXLAN without valid Id configured in %s. Ignoring", filename);
3be1d7e0 TG	310	return -EINVAL;
326cb406 SS	311	}
326cb406 SS	312
326cb406 SS	313	return 0;
326cb406 SS	314	}
3be1d7e0	315
aa9f1140	316	static void vxlan_init(NetDev *netdev) {
c2353b2f	317	VxLan *v;
aa9f1140 TG	318
aa9f1140 TG	319	assert(netdev);
c2353b2f SS	320
	321	v = VXLAN(netdev);
	322
aa9f1140 TG	323	assert(v);
	324
	325	v->id = VXLAN_VID_MAX + 1;
	326	v->learning = true;
cffacc74 SS	327	v->udpcsum = false;
	328	v->udp6zerocsumtx = false;
	329	v->udp6zerocsumrx = false;
aa9f1140 TG	330	}
aa9f1140 TG	331
3be1d7e0	332	const NetDevVTable vxlan_vtable = {
aa9f1140 TG	333	.object_size = sizeof(VxLan),
	334	.init = vxlan_init,
	335	.sections = "Match\0NetDev\0VXLAN\0",
	336	.fill_message_create = netdev_vxlan_fill_message_create,
	337	.create_type = NETDEV_CREATE_STACKED,
3be1d7e0 TG	338	.config_verify = netdev_vxlan_verify,
3be1d7e0 TG	339	};