22 #include <netlink-private/netlink.h> 23 #include <netlink/netlink.h> 24 #include <netlink/utils.h> 25 #include <netlink/object.h> 26 #include <netlink/route/rtnl.h> 27 #include <netlink-private/route/link/api.h> 28 #include <netlink/route/link/geneve.h> 32 #define GENEVE_ATTR_ID (1<<0) 33 #define GENEVE_ATTR_REMOTE (1<<1) 34 #define GENEVE_ATTR_REMOTE6 (1<<2) 35 #define GENEVE_ATTR_TTL (1<<3) 36 #define GENEVE_ATTR_TOS (1<<4) 37 #define GENEVE_ATTR_LABEL (1<<5) 38 #define GENEVE_ATTR_PORT (1<<6) 39 #define GENEVE_ATTR_FLAGS (1<<7) 40 #define GENEVE_ATTR_UDP_CSUM (1<<8) 41 #define GENEVE_ATTR_UDP_ZERO_CSUM6_TX (1<<9) 42 #define GENEVE_ATTR_UDP_ZERO_CSUM6_RX (1<<10) 48 struct in6_addr remote6;
55 uint8_t udp_zero_csum6_tx;
56 uint8_t udp_zero_csum6_rx;
62 static struct nla_policy geneve_policy[IFLA_GENEVE_MAX + 1] = {
64 [IFLA_GENEVE_REMOTE] = { .minlen =
sizeof(uint32_t) },
65 [IFLA_GENEVE_REMOTE6] = { .minlen =
sizeof(
struct in6_addr) },
66 [IFLA_GENEVE_TTL] = { .type =
NLA_U8 },
67 [IFLA_GENEVE_TOS] = { .type =
NLA_U8 },
68 [IFLA_GENEVE_LABEL] = { .type =
NLA_U32 },
69 [IFLA_GENEVE_PORT] = { .type =
NLA_U16 },
70 [IFLA_GENEVE_COLLECT_METADATA] = { .type =
NLA_FLAG },
71 [IFLA_GENEVE_UDP_CSUM] = { .type =
NLA_U8 },
72 [IFLA_GENEVE_UDP_ZERO_CSUM6_TX] = { .type =
NLA_U8 },
73 [IFLA_GENEVE_UDP_ZERO_CSUM6_RX] = { .type =
NLA_U8 },
76 static int geneve_alloc(
struct rtnl_link *link)
78 struct geneve_info *geneve;
81 memset(link->l_info, 0,
sizeof(*geneve));
83 if ((geneve = calloc(1,
sizeof(*geneve))) == NULL)
85 link->l_info = geneve;
91 static int geneve_parse(
struct rtnl_link *link,
struct nlattr *data,
92 struct nlattr *xstats)
94 struct nlattr *tb[IFLA_GENEVE_MAX + 1];
95 struct geneve_info *geneve;
98 NL_DBG(3,
"Parsing Geneve link info\n");
104 err = geneve_alloc(link);
108 geneve = link->l_info;
110 if (tb[IFLA_GENEVE_ID]) {
112 geneve->mask |= GENEVE_ATTR_ID;
115 if (tb[IFLA_GENEVE_REMOTE]) {
116 nla_memcpy(&geneve->remote, tb[IFLA_GENEVE_REMOTE],
117 sizeof(geneve->remote));
118 geneve->mask |= GENEVE_ATTR_REMOTE;
119 geneve->mask &= ~GENEVE_ATTR_REMOTE6;
121 if (tb[IFLA_GENEVE_REMOTE6]) {
122 nla_memcpy(&geneve->remote6, tb[IFLA_GENEVE_REMOTE6],
123 sizeof(geneve->remote6));
124 geneve->mask |= GENEVE_ATTR_REMOTE6;
125 geneve->mask &= ~GENEVE_ATTR_REMOTE;
128 if (tb[IFLA_GENEVE_TTL]) {
129 geneve->ttl =
nla_get_u8(tb[IFLA_GENEVE_TTL]);
130 geneve->mask |= GENEVE_ATTR_TTL;
133 if (tb[IFLA_GENEVE_TOS]) {
134 geneve->tos =
nla_get_u8(tb[IFLA_GENEVE_TOS]);
135 geneve->mask |= GENEVE_ATTR_TOS;
138 if (tb[IFLA_GENEVE_LABEL]) {
139 geneve->label =
nla_get_u32(tb[IFLA_GENEVE_LABEL]);
140 geneve->mask |= GENEVE_ATTR_LABEL;
143 if (tb[IFLA_GENEVE_PORT]) {
145 geneve->mask |= GENEVE_ATTR_PORT;
148 if (tb[IFLA_GENEVE_COLLECT_METADATA])
149 geneve->flags |= RTNL_LINK_GENEVE_F_COLLECT_METADATA;
151 if (tb[IFLA_GENEVE_UDP_CSUM]) {
152 geneve->udp_csum =
nla_get_u8(tb[IFLA_GENEVE_UDP_CSUM]);
153 geneve->mask |= GENEVE_ATTR_UDP_CSUM;
156 if (tb[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]) {
157 geneve->udp_zero_csum6_tx =
nla_get_u8(tb[IFLA_GENEVE_UDP_ZERO_CSUM6_TX]);
158 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_TX;
161 if (tb[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]) {
162 geneve->udp_zero_csum6_rx =
nla_get_u8(tb[IFLA_GENEVE_UDP_ZERO_CSUM6_RX]);
163 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_RX;
169 static void geneve_free(
struct rtnl_link *link)
171 struct geneve_info *geneve = link->l_info;
179 struct geneve_info *geneve = link->l_info;
181 nl_dump(p,
"geneve-id %u", geneve->id);
186 struct geneve_info *geneve = link->l_info;
187 char addr[INET6_ADDRSTRLEN];
189 nl_dump_line(p,
" geneve-id %u\n", geneve->id);
191 if (geneve->mask & GENEVE_ATTR_REMOTE) {
193 if (inet_ntop(AF_INET, &geneve->remote, addr,
sizeof(addr)))
194 nl_dump_line(p,
"%s\n", addr);
196 nl_dump_line(p,
"%#x\n", ntohs(geneve->remote));
197 }
else if (geneve->mask & GENEVE_ATTR_REMOTE6) {
199 if (inet_ntop(AF_INET6, &geneve->remote6, addr,
sizeof(addr)))
200 nl_dump_line(p,
"%s\n", addr);
202 nl_dump_line(p,
"%#x\n", geneve->remote6);
205 if (geneve->mask & GENEVE_ATTR_TTL) {
207 nl_dump_line(p,
"%u\n", geneve->ttl);
210 if (geneve->mask & GENEVE_ATTR_TOS) {
212 nl_dump_line(p,
"%u\n", geneve->tos);
215 if (geneve->mask & GENEVE_ATTR_PORT) {
217 nl_dump_line(p,
"%u\n", ntohs(geneve->port));
220 if (geneve->mask & GENEVE_ATTR_LABEL) {
222 nl_dump_line(p,
"%u\n", ntohl(geneve->label));
225 if (geneve->mask & GENEVE_ATTR_UDP_CSUM) {
227 if (geneve->udp_csum)
228 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_csum);
230 nl_dump_line(p,
"disabled\n");
233 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX) {
234 nl_dump(p,
" udp-zero-csum6-tx ");
235 if (geneve->udp_zero_csum6_tx)
236 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_zero_csum6_tx);
238 nl_dump_line(p,
"disabled\n");
241 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX) {
242 nl_dump(p,
" udp-zero-csum6-rx ");
243 if (geneve->udp_zero_csum6_tx)
244 nl_dump_line(p,
"enabled (%#x)\n", geneve->udp_zero_csum6_rx);
246 nl_dump_line(p,
"disabled\n");
249 if (geneve->flags & RTNL_LINK_GENEVE_F_COLLECT_METADATA)
250 nl_dump(p,
" collect-metadata\n");
255 struct geneve_info *gdst, *gsrc;
269 memcpy(gdst, gsrc,
sizeof(
struct geneve_info));
274 static int geneve_put_attrs(
struct nl_msg *msg,
struct rtnl_link *link)
276 struct geneve_info *geneve = link->l_info;
282 if (geneve->mask & GENEVE_ATTR_ID)
285 if (geneve->mask & GENEVE_ATTR_REMOTE)
286 NLA_PUT(msg, IFLA_GENEVE_REMOTE,
287 sizeof(geneve->remote), &geneve->remote);
289 if (geneve->mask & GENEVE_ATTR_REMOTE6)
290 NLA_PUT(msg, IFLA_GENEVE_REMOTE6,
291 sizeof(geneve->remote6), &geneve->remote6);
293 if (geneve->mask & GENEVE_ATTR_TTL)
294 NLA_PUT_U8(msg, IFLA_GENEVE_TTL, geneve->ttl);
296 if (geneve->mask & GENEVE_ATTR_TOS)
297 NLA_PUT_U8(msg, IFLA_GENEVE_TOS, geneve->tos);
299 if (geneve->mask & GENEVE_ATTR_LABEL)
300 NLA_PUT_U32(msg, IFLA_GENEVE_LABEL, geneve->label);
302 if (geneve->mask & GENEVE_ATTR_PORT)
305 if (geneve->mask & GENEVE_ATTR_UDP_CSUM)
306 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_CSUM, geneve->udp_csum);
308 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX)
309 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, geneve->udp_zero_csum6_tx);
311 if (geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX)
312 NLA_PUT_U8(msg, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, geneve->udp_zero_csum6_rx);
314 if (geneve->flags & RTNL_LINK_GENEVE_F_COLLECT_METADATA)
324 static struct rtnl_link_info_ops geneve_info_ops = {
326 .io_alloc = geneve_alloc,
327 .io_parse = geneve_parse,
332 .io_clone = geneve_clone,
333 .io_put_attrs = geneve_put_attrs,
334 .io_free = geneve_free,
339 #define IS_GENEVE_LINK_ASSERT(link) \ 340 if ((link)->l_info_ops != &geneve_info_ops) { \ 341 APPBUG("Link is not a geneve link. set type \"geneve\" first."); \ 342 return -NLE_OPNOTSUPP; \ 380 return link->l_info_ops && !strcmp(link->l_info_ops->io_name,
"geneve");
392 struct geneve_info *geneve = link->l_info;
394 IS_GENEVE_LINK_ASSERT(link);
396 if (
id > RTNL_GENEVE_ID_MAX)
400 geneve->mask |= GENEVE_ATTR_ID;
414 struct geneve_info *geneve = link->l_info;
416 IS_GENEVE_LINK_ASSERT(link);
421 if (geneve->mask & GENEVE_ATTR_ID)
438 struct geneve_info *geneve = link->l_info;
440 IS_GENEVE_LINK_ASSERT(link);
445 sizeof(geneve->remote));
446 geneve->mask |= GENEVE_ATTR_REMOTE;
447 geneve->mask &= ~GENEVE_ATTR_REMOTE6;
451 sizeof(geneve->remote6));
452 geneve->mask |= GENEVE_ATTR_REMOTE6;
453 geneve->mask &= ~GENEVE_ATTR_REMOTE;
469 struct geneve_info *geneve = link->l_info;
471 IS_GENEVE_LINK_ASSERT(link);
476 if (geneve->mask & GENEVE_ATTR_REMOTE)
477 *addr =
nl_addr_build(AF_INET, &geneve->remote,
sizeof(geneve->remote));
478 else if (geneve->mask & GENEVE_ATTR_REMOTE6)
479 *addr =
nl_addr_build(AF_INET6, &geneve->remote6,
sizeof(geneve->remote6));
495 struct geneve_info *geneve = link->l_info;
497 IS_GENEVE_LINK_ASSERT(link);
500 geneve->mask |= GENEVE_ATTR_TTL;
513 struct geneve_info *geneve = link->l_info;
515 IS_GENEVE_LINK_ASSERT(link);
517 if (!(geneve->mask & GENEVE_ATTR_TTL))
532 struct geneve_info *geneve = link->l_info;
534 IS_GENEVE_LINK_ASSERT(link);
537 geneve->mask |= GENEVE_ATTR_TOS;
550 struct geneve_info *geneve = link->l_info;
552 IS_GENEVE_LINK_ASSERT(link);
554 if (!(geneve->mask & GENEVE_ATTR_TOS))
570 struct geneve_info *geneve = link->l_info;
572 IS_GENEVE_LINK_ASSERT(link);
574 geneve->port = htons(port);
575 geneve->mask |= GENEVE_ATTR_PORT;
589 struct geneve_info *geneve = link->l_info;
591 IS_GENEVE_LINK_ASSERT(link);
596 if (!(geneve->mask & GENEVE_ATTR_PORT))
599 *port = ntohs(geneve->port);
613 struct geneve_info *geneve = link->l_info;
615 IS_GENEVE_LINK_ASSERT(link);
617 geneve->label = htonl(label);
618 geneve->mask |= GENEVE_ATTR_LABEL;
632 struct geneve_info *geneve = link->l_info;
634 IS_GENEVE_LINK_ASSERT(link);
638 if (!(geneve->mask & GENEVE_ATTR_LABEL))
641 *label = ntohl(geneve->label);
655 struct geneve_info *geneve = link->l_info;
657 IS_GENEVE_LINK_ASSERT(link);
659 geneve->udp_csum = csum;
660 geneve->mask |= GENEVE_ATTR_UDP_CSUM;
673 struct geneve_info *geneve = link->l_info;
675 IS_GENEVE_LINK_ASSERT(link);
677 if (!(geneve->mask & GENEVE_ATTR_UDP_CSUM))
680 return geneve->udp_csum;
692 struct geneve_info *geneve = link->l_info;
694 IS_GENEVE_LINK_ASSERT(link);
696 geneve->udp_zero_csum6_tx = csum;
697 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_TX;
710 struct geneve_info *geneve = link->l_info;
712 IS_GENEVE_LINK_ASSERT(link);
714 if (!(geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_TX))
717 return geneve->udp_zero_csum6_tx;
729 struct geneve_info *geneve = link->l_info;
731 IS_GENEVE_LINK_ASSERT(link);
733 geneve->udp_zero_csum6_rx = csum;
734 geneve->mask |= GENEVE_ATTR_UDP_ZERO_CSUM6_RX;
747 struct geneve_info *geneve = link->l_info;
749 IS_GENEVE_LINK_ASSERT(link);
751 if (!(geneve->mask & GENEVE_ATTR_UDP_ZERO_CSUM6_RX))
754 return geneve->udp_zero_csum6_rx;
767 struct geneve_info *geneve = link->l_info;
769 IS_GENEVE_LINK_ASSERT(link);
771 if (flags & ~RTNL_LINK_GENEVE_F_COLLECT_METADATA)
775 geneve->flags = flags;
777 geneve->flags &= ~flags;
791 struct geneve_info *geneve = link->l_info;
793 IS_GENEVE_LINK_ASSERT(link);
795 *flags = geneve->flags;
800 static void __init geneve_init(
void)
805 static void __exit geneve_exit(
void)
Dump object briefly on one line.
int rtnl_link_geneve_set_port(struct rtnl_link *link, uint32_t port)
Set UDP destination port to use for Geneve.
int rtnl_link_register_info(struct rtnl_link_info_ops *ops)
Register operations for a link info type.
int rtnl_link_geneve_set_flags(struct rtnl_link *link, uint8_t flags, int enable)
Set Geneve flags.
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.
Attribute validation policy.
uint8_t nla_get_u8(const struct nlattr *nla)
Return value of 8 bit integer attribute.
struct rtnl_link * rtnl_link_alloc(void)
Allocate link object.
int rtnl_link_geneve_set_tos(struct rtnl_link *link, uint8_t tos)
Set IP ToS value to use for Geneve.
struct nl_addr * nl_addr_build(int family, const void *buf, size_t size)
Allocate abstract address based on a binary address.
uint32_t nla_get_u32(const struct nlattr *nla)
Return payload of 32 bit integer attribute.
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_get_id(struct rtnl_link *link, uint32_t *id)
Get Geneve Network Identifier.
int rtnl_link_geneve_get_ttl(struct rtnl_link *link)
Get IP TTL value to use for Geneve.
int rtnl_link_geneve_get_port(struct rtnl_link *link, uint32_t *port)
Get UDP destination port to use for Geneve.
#define NLA_PUT_U8(msg, attrtype, value)
Add 8 bit integer attribute to netlink message.
int rtnl_link_geneve_get_label(struct rtnl_link *link, uint32_t *label)
Get flow label to use for Geneve.
Dump all attributes but no statistics.
struct rtnl_link * rtnl_link_geneve_alloc(void)
Allocate link object of type Geneve.
int rtnl_link_geneve_set_id(struct rtnl_link *link, uint32_t id)
Set Geneve Network Indentifier.
int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
Finalize nesting of 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.
#define NLA_PUT_FLAG(msg, attrtype)
Add flag attribute to netlink message.
int nla_memcpy(void *dest, const struct nlattr *src, int count)
Copy attribute payload to another memory area.
int rtnl_link_geneve_get_remote(struct rtnl_link *link, struct nl_addr **addr)
Get Geneve unicast destination IP address.
#define NLA_PUT(msg, attrtype, attrlen, data)
Add unspecific attribute to netlink message.
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_set_type(struct rtnl_link *link, const char *type)
Set type of link object.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
int rtnl_link_geneve_get_udp_csum(struct rtnl_link *link)
Get UDP checksum status to use for Geneve.
int rtnl_link_unregister_info(struct rtnl_link_info_ops *ops)
Unregister operations for a link info type.
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.
uint16_t type
Type of attribute or NLA_UNSPEC.
int rtnl_link_geneve_get_tos(struct rtnl_link *link)
Get IP ToS value to use for Geneve.
uint16_t nla_get_u16(const struct nlattr *nla)
Return payload of 16 bit integer attribute.
int rtnl_link_geneve_set_label(struct rtnl_link *link, uint32_t label)
Set flow label to use for Geneve.
int rtnl_link_is_geneve(struct rtnl_link *link)
Check if link is a Geneve link.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
void rtnl_link_put(struct rtnl_link *link)
Return a link object reference.
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_flags(struct rtnl_link *link, uint8_t *flags)
Get Geneve flags.
unsigned int nl_addr_get_len(const struct nl_addr *addr)
Get length of binary address of abstract address object.
void * nl_addr_get_binary_addr(const struct nl_addr *addr)
Get binary address of abstract address object.
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_remote(struct rtnl_link *link, struct nl_addr *addr)
Set Geneve unicast destination IP address.
struct nlattr * nla_nest_start(struct nl_msg *msg, int attrtype)
Start a new level of nested attributes.
int nl_addr_get_family(const struct nl_addr *addr)
Return address family.