18#include "nl-default.h"
20#include <netlink/netlink.h>
21#include <netlink/utils.h>
22#include <netlink/object.h>
23#include <netlink/route/rtnl.h>
24#include <netlink/route/link/geneve.h>
30#define GENEVE_ATTR_ID (1<<0)
31#define GENEVE_ATTR_REMOTE (1<<1)
32#define GENEVE_ATTR_REMOTE6 (1<<2)
33#define GENEVE_ATTR_TTL (1<<3)
34#define GENEVE_ATTR_TOS (1<<4)
35#define GENEVE_ATTR_LABEL (1<<5)
36#define GENEVE_ATTR_PORT (1<<6)
37#define GENEVE_ATTR_FLAGS (1<<7)
38#define GENEVE_ATTR_UDP_CSUM (1<<8)
39#define GENEVE_ATTR_UDP_ZERO_CSUM6_TX (1<<9)
40#define GENEVE_ATTR_UDP_ZERO_CSUM6_RX (1<<10)
46 struct in6_addr remote6;
53 uint8_t udp_zero_csum6_tx;
54 uint8_t udp_zero_csum6_rx;
60static struct nla_policy geneve_policy[IFLA_GENEVE_MAX + 1] = {
62 [IFLA_GENEVE_REMOTE] = { .minlen =
sizeof(uint32_t) },
63 [IFLA_GENEVE_REMOTE6] = { .minlen =
sizeof(
struct in6_addr) },
64 [IFLA_GENEVE_TTL] = { .type =
NLA_U8 },
65 [IFLA_GENEVE_TOS] = { .type =
NLA_U8 },
66 [IFLA_GENEVE_LABEL] = { .type =
NLA_U32 },
67 [IFLA_GENEVE_PORT] = { .type =
NLA_U16 },
68 [IFLA_GENEVE_COLLECT_METADATA] = { .type =
NLA_FLAG },
69 [IFLA_GENEVE_UDP_CSUM] = { .type =
NLA_U8 },
70 [IFLA_GENEVE_UDP_ZERO_CSUM6_TX] = { .type =
NLA_U8 },
71 [IFLA_GENEVE_UDP_ZERO_CSUM6_RX] = { .type =
NLA_U8 },
74static int geneve_alloc(
struct rtnl_link *link)
76 struct geneve_info *geneve;
79 memset(link->l_info, 0,
sizeof(*geneve));
81 if ((geneve = calloc(1,
sizeof(*geneve))) == NULL)
83 link->l_info = geneve;
89static int geneve_parse(
struct rtnl_link *link,
struct nlattr *data,
90 struct nlattr *xstats)
92 struct nlattr *tb[IFLA_GENEVE_MAX + 1];
93 struct geneve_info *geneve;
96 NL_DBG(3,
"Parsing Geneve link info\n");
102 err = geneve_alloc(link);
106 geneve = link->l_info;
108 if (tb[IFLA_GENEVE_ID]) {
110 geneve->mask |= GENEVE_ATTR_ID;
113 if (tb[IFLA_GENEVE_REMOTE]) {
114 nla_memcpy(&geneve->remote, tb[IFLA_GENEVE_REMOTE],
115 sizeof(geneve->remote));
116 geneve->mask |= GENEVE_ATTR_REMOTE;
117 geneve->mask &= ~GENEVE_ATTR_REMOTE6;
119 if (tb[IFLA_GENEVE_REMOTE6]) {
120 nla_memcpy(&geneve->remote6, tb[IFLA_GENEVE_REMOTE6],
121 sizeof(geneve->remote6));
122 geneve->mask |= GENEVE_ATTR_REMOTE6;
123 geneve->mask &= ~GENEVE_ATTR_REMOTE;
126 if (tb[IFLA_GENEVE_TTL]) {
127 geneve->ttl =
nla_get_u8(tb[IFLA_GENEVE_TTL]);
128 geneve->mask |= GENEVE_ATTR_TTL;
131 if (tb[IFLA_GENEVE_TOS]) {
132 geneve->tos =
nla_get_u8(tb[IFLA_GENEVE_TOS]);
133 geneve->mask |= GENEVE_ATTR_TOS;
136 if (tb[IFLA_GENEVE_LABEL]) {
137 geneve->label =
nla_get_u32(tb[IFLA_GENEVE_LABEL]);
138 geneve->mask |= GENEVE_ATTR_LABEL;
141 if (tb[IFLA_GENEVE_PORT]) {
143 geneve->mask |= GENEVE_ATTR_PORT;
146 if (tb[IFLA_GENEVE_COLLECT_METADATA])
147 geneve->flags |= RTNL_LINK_GENEVE_F_COLLECT_METADATA;
149 if (tb[IFLA_GENEVE_UDP_CSUM]) {
150 geneve->udp_csum =
nla_get_u8(tb[IFLA_GENEVE_UDP_CSUM]);
151 geneve->mask |= GENEVE_ATTR_UDP_CSUM;
154 if (tb[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]) {
155 geneve->udp_zero_csum6_tx =
nla_get_u8(tb[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]);
156 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_TX;
159 if (tb[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]) {
160 geneve->udp_zero_csum6_rx =
nla_get_u8(tb[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]);
161 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_RX;
167static void geneve_free(
struct rtnl_link *link)
169 struct geneve_info *geneve = link->l_info;
177 struct geneve_info *geneve = link->l_info;
179 nl_dump(p,
"geneve-id %u", geneve->id);
184 struct geneve_info *geneve = link->l_info;
185 char addr[INET6_ADDRSTRLEN];
187 nl_dump_line(p,
" geneve-id %u\n", geneve->id);
189 if (geneve->mask & GENEVE_ATTR_REMOTE) {
191 nl_dump_line(p,
"%s\n",
192 _nl_inet_ntop(AF_INET, &geneve->remote, addr));
193 }
else if (geneve->mask & GENEVE_ATTR_REMOTE6) {
195 nl_dump_line(p,
"%s\n",
196 _nl_inet_ntop(AF_INET6, &geneve->remote6, addr));
199 if (geneve->mask & GENEVE_ATTR_TTL) {
201 nl_dump_line(p,
"%u\n", geneve->ttl);
204 if (geneve->mask & GENEVE_ATTR_TOS) {
206 nl_dump_line(p,
"%u\n", geneve->tos);
209 if (geneve->mask & GENEVE_ATTR_PORT) {
211 nl_dump_line(p,
"%u\n", ntohs(geneve->port));
214 if (geneve->mask & GENEVE_ATTR_LABEL) {
216 nl_dump_line(p,
"%u\n", ntohl(geneve->label));
219 if (geneve->mask & GENEVE_ATTR_UDP_CSUM) {
221 if (geneve->udp_csum)
222 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_csum);
224 nl_dump_line(p,
"disabled\n");
227 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX) {
228 nl_dump(p,
" udp-zero-csum6-tx ");
229 if (geneve->udp_zero_csum6_tx)
230 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_zero_csum6_tx);
232 nl_dump_line(p,
"disabled\n");
235 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX) {
236 nl_dump(p,
" udp-zero-csum6-rx ");
237 if (geneve->udp_zero_csum6_rx)
238 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_zero_csum6_rx);
240 nl_dump_line(p,
"disabled\n");
243 if (geneve->flags & RTNL_LINK_GENEVE_F_COLLECT_METADATA)
244 nl_dump(p,
" collect-metadata\n");
249 struct geneve_info *gdst, *gsrc;
263 memcpy(gdst, gsrc,
sizeof(
struct geneve_info));
268static int geneve_put_attrs(
struct nl_msg *msg,
struct rtnl_link *link)
270 struct geneve_info *geneve = link->l_info;
276 if (geneve->mask & GENEVE_ATTR_ID)
279 if (geneve->mask & GENEVE_ATTR_REMOTE)
280 NLA_PUT(msg, IFLA_GENEVE_REMOTE,
281 sizeof(geneve->remote), &geneve->remote);
283 if (geneve->mask & GENEVE_ATTR_REMOTE6)
284 NLA_PUT(msg, IFLA_GENEVE_REMOTE6,
285 sizeof(geneve->remote6), &geneve->remote6);
287 if (geneve->mask & GENEVE_ATTR_TTL)
288 NLA_PUT_U8(msg, IFLA_GENEVE_TTL, geneve->ttl);
290 if (geneve->mask & GENEVE_ATTR_TOS)
291 NLA_PUT_U8(msg, IFLA_GENEVE_TOS, geneve->tos);
293 if (geneve->mask & GENEVE_ATTR_LABEL)
294 NLA_PUT_U32(msg, IFLA_GENEVE_LABEL, geneve->label);
296 if (geneve->mask & GENEVE_ATTR_PORT)
299 if (geneve->mask & GENEVE_ATTR_UDP_CSUM)
300 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_CSUM, geneve->udp_csum);
302 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX)
303 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, geneve->udp_zero_csum6_tx);
305 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX)
306 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, geneve->udp_zero_csum6_rx);
308 if (geneve->flags & RTNL_LINK_GENEVE_F_COLLECT_METADATA)
320 .io_alloc = geneve_alloc,
321 .io_parse = geneve_parse,
326 .io_clone = geneve_clone,
327 .io_put_attrs = geneve_put_attrs,
328 .io_free = geneve_free,
333#define IS_GENEVE_LINK_ASSERT(link) \
334 if ((link)->l_info_ops != &geneve_info_ops) { \
335 APPBUG("Link is not a geneve link. set type \"geneve\" first."); \
336 return -NLE_OPNOTSUPP; \
373 return link->l_info_ops && !strcmp(link->l_info_ops->
io_name,
"geneve");
385 struct geneve_info *geneve = link->l_info;
387 IS_GENEVE_LINK_ASSERT(link);
389 if (
id > RTNL_GENEVE_ID_MAX)
393 geneve->mask |= GENEVE_ATTR_ID;
407 struct geneve_info *geneve = link->l_info;
409 IS_GENEVE_LINK_ASSERT(link);
414 if (geneve->mask & GENEVE_ATTR_ID)
431 struct geneve_info *geneve = link->l_info;
433 IS_GENEVE_LINK_ASSERT(link);
438 sizeof(geneve->remote));
439 geneve->mask |= GENEVE_ATTR_REMOTE;
440 geneve->mask &= ~GENEVE_ATTR_REMOTE6;
444 sizeof(geneve->remote6));
445 geneve->mask |= GENEVE_ATTR_REMOTE6;
446 geneve->mask &= ~GENEVE_ATTR_REMOTE;
462 struct geneve_info *geneve = link->l_info;
464 IS_GENEVE_LINK_ASSERT(link);
469 if (geneve->mask & GENEVE_ATTR_REMOTE)
470 *addr =
nl_addr_build(AF_INET, &geneve->remote,
sizeof(geneve->remote));
471 else if (geneve->mask & GENEVE_ATTR_REMOTE6)
472 *addr =
nl_addr_build(AF_INET6, &geneve->remote6,
sizeof(geneve->remote6));
488 struct geneve_info *geneve = link->l_info;
490 IS_GENEVE_LINK_ASSERT(link);
493 geneve->mask |= GENEVE_ATTR_TTL;
506 struct geneve_info *geneve = link->l_info;
508 IS_GENEVE_LINK_ASSERT(link);
510 if (!(geneve->mask & GENEVE_ATTR_TTL))
525 struct geneve_info *geneve = link->l_info;
527 IS_GENEVE_LINK_ASSERT(link);
530 geneve->mask |= GENEVE_ATTR_TOS;
543 struct geneve_info *geneve = link->l_info;
545 IS_GENEVE_LINK_ASSERT(link);
547 if (!(geneve->mask & GENEVE_ATTR_TOS))
563 struct geneve_info *geneve = link->l_info;
565 IS_GENEVE_LINK_ASSERT(link);
567 geneve->port = htons(port);
568 geneve->mask |= GENEVE_ATTR_PORT;
582 struct geneve_info *geneve = link->l_info;
584 IS_GENEVE_LINK_ASSERT(link);
589 if (!(geneve->mask & GENEVE_ATTR_PORT))
592 *port = ntohs(geneve->port);
606 struct geneve_info *geneve = link->l_info;
608 IS_GENEVE_LINK_ASSERT(link);
610 geneve->label = htonl(label);
611 geneve->mask |= GENEVE_ATTR_LABEL;
625 struct geneve_info *geneve = link->l_info;
627 IS_GENEVE_LINK_ASSERT(link);
631 if (!(geneve->mask & GENEVE_ATTR_LABEL))
634 *label = ntohl(geneve->label);
648 struct geneve_info *geneve = link->l_info;
650 IS_GENEVE_LINK_ASSERT(link);
652 geneve->udp_csum = csum;
653 geneve->mask |= GENEVE_ATTR_UDP_CSUM;
666 struct geneve_info *geneve = link->l_info;
668 IS_GENEVE_LINK_ASSERT(link);
670 if (!(geneve->mask & GENEVE_ATTR_UDP_CSUM))
673 return geneve->udp_csum;
685 struct geneve_info *geneve = link->l_info;
687 IS_GENEVE_LINK_ASSERT(link);
689 geneve->udp_zero_csum6_tx = csum;
690 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_TX;
703 struct geneve_info *geneve = link->l_info;
705 IS_GENEVE_LINK_ASSERT(link);
707 if (!(geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX))
710 return geneve->udp_zero_csum6_tx;
722 struct geneve_info *geneve = link->l_info;
724 IS_GENEVE_LINK_ASSERT(link);
726 geneve->udp_zero_csum6_rx = csum;
727 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_RX;
740 struct geneve_info *geneve = link->l_info;
742 IS_GENEVE_LINK_ASSERT(link);
744 if (!(geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX))
747 return geneve->udp_zero_csum6_rx;
760 struct geneve_info *geneve = link->l_info;
762 IS_GENEVE_LINK_ASSERT(link);
764 if (flags & ~RTNL_LINK_GENEVE_F_COLLECT_METADATA)
768 geneve->flags = flags;
770 geneve->flags &= ~flags;
784 struct geneve_info *geneve = link->l_info;
786 IS_GENEVE_LINK_ASSERT(link);
788 *flags = geneve->flags;
793static void _nl_init geneve_init(
void)
798static void _nl_exit geneve_exit(
void)
struct nl_addr * nl_addr_build(int family, const void *buf, size_t size)
Allocate abstract address based on a binary address.
void * nl_addr_get_binary_addr(const struct nl_addr *addr)
Get binary address of abstract address object.
int nl_addr_get_family(const struct nl_addr *addr)
Return address family.
unsigned int nl_addr_get_len(const struct nl_addr *addr)
Get length of binary address of abstract address object.
uint32_t nla_get_u32(const struct nlattr *nla)
Return payload of 32 bit integer attribute.
uint16_t nla_get_u16(const struct nlattr *nla)
Return payload of 16 bit integer attribute.
#define NLA_PUT_FLAG(msg, attrtype)
Add flag attribute to netlink message.
#define NLA_PUT_U8(msg, attrtype, value)
Add 8 bit integer attribute to netlink message.
#define NLA_PUT(msg, attrtype, attrlen, data)
Add unspecific attribute to netlink message.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
uint8_t nla_get_u8(const struct nlattr *nla)
Return value of 8 bit integer attribute.
int nla_memcpy(void *dest, const struct nlattr *src, int count)
Copy attribute payload to another memory area.
struct nlattr * nla_nest_start(struct nl_msg *msg, int attrtype)
Start a new level of nested attributes.
int nla_parse_nested(struct nlattr *tb[], int maxtype, struct nlattr *nla, const struct nla_policy *policy)
Create attribute index based on nested attribute.
int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
Finalize nesting of attributes.
int rtnl_link_geneve_get_remote(struct rtnl_link *link, struct nl_addr **addr)
Get Geneve unicast destination IP address.
struct rtnl_link * rtnl_link_geneve_alloc(void)
Allocate link object of type Geneve.
int rtnl_link_geneve_get_port(struct rtnl_link *link, uint32_t *port)
Get UDP destination port to use for Geneve.
int rtnl_link_geneve_set_flags(struct rtnl_link *link, uint8_t flags, int enable)
Set Geneve flags.
int rtnl_link_geneve_set_tos(struct rtnl_link *link, uint8_t tos)
Set IP ToS value to use for Geneve.
int rtnl_link_geneve_get_udp_zero_csum6_tx(struct rtnl_link *link)
Get skip UDP checksum transmitted over IPv6 status to use for Geneve.
int rtnl_link_geneve_get_udp_zero_csum6_rx(struct rtnl_link *link)
Get skip UDP checksum received over IPv6 status to use for Geneve.
int rtnl_link_geneve_set_remote(struct rtnl_link *link, struct nl_addr *addr)
Set Geneve unicast destination IP address.
int rtnl_link_geneve_get_tos(struct rtnl_link *link)
Get IP ToS value to use for Geneve.
int rtnl_link_geneve_set_udp_zero_csum6_tx(struct rtnl_link *link, uint8_t csum)
Set skip UDP checksum transmitted over IPv6 status to use for Geneve.
int rtnl_link_geneve_get_flags(struct rtnl_link *link, uint8_t *flags)
Get Geneve flags.
int rtnl_link_geneve_set_ttl(struct rtnl_link *link, uint8_t ttl)
Set IP TTL value to use for Geneve.
int rtnl_link_geneve_set_udp_zero_csum6_rx(struct rtnl_link *link, uint8_t csum)
Set skip UDP checksum received over IPv6 status to use for Geneve.
int rtnl_link_geneve_set_label(struct rtnl_link *link, uint32_t label)
Set flow label to use for Geneve.
int rtnl_link_geneve_get_label(struct rtnl_link *link, uint32_t *label)
Get flow label to use for Geneve.
int rtnl_link_geneve_set_udp_csum(struct rtnl_link *link, uint8_t csum)
Set UDP checksum status to use for Geneve.
int rtnl_link_geneve_get_udp_csum(struct rtnl_link *link)
Get UDP checksum status to use for Geneve.
int rtnl_link_geneve_set_port(struct rtnl_link *link, uint32_t port)
Set UDP destination port to use for Geneve.
int rtnl_link_geneve_set_id(struct rtnl_link *link, uint32_t id)
Set Geneve Network Indentifier.
int rtnl_link_geneve_get_ttl(struct rtnl_link *link)
Get IP TTL value to use for Geneve.
int rtnl_link_geneve_get_id(struct rtnl_link *link, uint32_t *id)
Get Geneve Network Identifier.
int rtnl_link_is_geneve(struct rtnl_link *link)
Check if link is a Geneve link.
int rtnl_link_register_info(struct rtnl_link_info_ops *ops)
Register operations for a link info type.
int rtnl_link_unregister_info(struct rtnl_link_info_ops *ops)
Unregister operations for a link info type.
struct rtnl_link * rtnl_link_alloc(void)
Allocate link object.
void rtnl_link_put(struct rtnl_link *link)
Release a link object reference.
int rtnl_link_set_type(struct rtnl_link *link, const char *type)
Set type of link object.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
@ NL_DUMP_LINE
Dump object briefly on one line.
@ NL_DUMP_DETAILS
Dump all attributes but no statistics.
Attribute validation policy.
uint16_t type
Type of attribute or NLA_UNSPEC.
Available operations to modules implementing a link info type.
char * io_name
Name of link info type, must match name on kernel side.