41 #include <netlink-private/netlink.h>
42 #include <netlink/netlink.h>
43 #include <netlink/cache.h>
44 #include <netlink/object.h>
45 #include <netlink/xfrm/selector.h>
46 #include <netlink/xfrm/lifetime.h>
50 #define XFRM_SA_ATTR_SEL 0x01
51 #define XFRM_SA_ATTR_DADDR 0x02
52 #define XFRM_SA_ATTR_SPI 0x04
53 #define XFRM_SA_ATTR_PROTO 0x08
54 #define XFRM_SA_ATTR_SADDR 0x10
55 #define XFRM_SA_ATTR_LTIME_CFG 0x20
56 #define XFRM_SA_ATTR_LTIME_CUR 0x40
57 #define XFRM_SA_ATTR_STATS 0x80
58 #define XFRM_SA_ATTR_SEQ 0x100
59 #define XFRM_SA_ATTR_REQID 0x200
60 #define XFRM_SA_ATTR_FAMILY 0x400
61 #define XFRM_SA_ATTR_MODE 0x800
62 #define XFRM_SA_ATTR_REPLAY_WIN 0x1000
63 #define XFRM_SA_ATTR_FLAGS 0x2000
64 #define XFRM_SA_ATTR_ALG_AEAD 0x4000
65 #define XFRM_SA_ATTR_ALG_AUTH 0x8000
66 #define XFRM_SA_ATTR_ALG_CRYPT 0x10000
67 #define XFRM_SA_ATTR_ALG_COMP 0x20000
68 #define XFRM_SA_ATTR_ENCAP 0x40000
69 #define XFRM_SA_ATTR_TFCPAD 0x80000
70 #define XFRM_SA_ATTR_COADDR 0x100000
71 #define XFRM_SA_ATTR_MARK 0x200000
72 #define XFRM_SA_ATTR_SECCTX 0x400000
73 #define XFRM_SA_ATTR_REPLAY_MAXAGE 0x800000
74 #define XFRM_SA_ATTR_REPLAY_MAXDIFF 0x1000000
75 #define XFRM_SA_ATTR_REPLAY_STATE 0x2000000
76 #define XFRM_SA_ATTR_EXPIRE 0x4000000
78 static struct nl_cache_ops xfrmnl_sa_ops;
79 static struct nl_object_ops xfrm_sa_obj_ops;
82 static void xfrm_sa_alloc_data(
struct nl_object *c)
84 struct xfrmnl_sa* sa = nl_object_priv (c);
93 static void xfrm_sa_free_data(
struct nl_object *c)
95 struct xfrmnl_sa* sa = nl_object_priv (c);
100 xfrmnl_sel_put (sa->sel);
101 xfrmnl_ltime_cfg_put (sa->lft);
119 if (sa->replay_state_esn)
120 free (sa->replay_state_esn);
123 static int xfrm_sa_clone(
struct nl_object *_dst,
struct nl_object *_src)
125 struct xfrmnl_sa* dst = nl_object_priv(_dst);
126 struct xfrmnl_sa* src = nl_object_priv(_src);
147 len =
sizeof (
struct xfrmnl_algo_aead) + ((src->aead->alg_key_len + 7) / 8);
148 if ((dst->aead = calloc (1, len)) == NULL)
150 memcpy ((
void *)dst->aead, (
void *)src->aead, len);
155 len =
sizeof (
struct xfrmnl_algo_auth) + ((src->auth->alg_key_len + 7) / 8);
156 if ((dst->auth = calloc (1, len)) == NULL)
158 memcpy ((
void *)dst->auth, (
void *)src->auth, len);
163 len =
sizeof (
struct xfrmnl_algo) + ((src->crypt->alg_key_len + 7) / 8);
164 if ((dst->crypt = calloc (1, len)) == NULL)
166 memcpy ((
void *)dst->crypt, (
void *)src->crypt, len);
171 len =
sizeof (
struct xfrmnl_algo) + ((src->comp->alg_key_len + 7) / 8);
172 if ((dst->comp = calloc (1, len)) == NULL)
174 memcpy ((
void *)dst->comp, (
void *)src->comp, len);
179 len =
sizeof (
struct xfrmnl_encap_tmpl);
180 if ((dst->encap = calloc (1, len)) == NULL)
182 memcpy ((
void *)dst->encap, (
void *)src->encap, len);
191 len =
sizeof (
struct xfrmnl_sec_ctx) + src->sec_ctx->ctx_len;
192 if ((dst->sec_ctx = calloc (1, len)) == NULL)
194 memcpy ((
void *)dst->sec_ctx, (
void *)src->sec_ctx, len);
197 if (src->replay_state_esn)
199 len =
sizeof (
struct xfrmnl_replay_state_esn) + (src->replay_state_esn->bmp_len *
sizeof (uint32_t));
200 if ((dst->replay_state_esn = calloc (1, len)) == NULL)
202 memcpy ((
void *)dst->replay_state_esn, (
void *)src->replay_state_esn, len);
208 static int xfrm_sa_compare(
struct nl_object *_a,
struct nl_object *_b, uint32_t attrs,
int flags)
210 struct xfrmnl_sa* a = (
struct xfrmnl_sa *) _a;
211 struct xfrmnl_sa* b = (
struct xfrmnl_sa *) _b;
215 #define XFRM_SA_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, XFRM_SA_ATTR_##ATTR, a, b, EXPR)
217 diff |= XFRM_SA_DIFF(DADDR,
nl_addr_cmp(a->id.daddr, b->id.daddr));
218 diff |= XFRM_SA_DIFF(SPI, a->id.spi != b->id.spi);
219 diff |= XFRM_SA_DIFF(PROTO, a->id.proto != b->id.proto);
220 diff |= XFRM_SA_DIFF(SADDR,
nl_addr_cmp(a->saddr, b->saddr));
222 diff |= XFRM_SA_DIFF(REQID, a->reqid != b->reqid);
223 diff |= XFRM_SA_DIFF(FAMILY,a->family != b->family);
224 diff |= XFRM_SA_DIFF(MODE,a->mode != b->mode);
225 diff |= XFRM_SA_DIFF(REPLAY_WIN,a->replay_window != b->replay_window);
226 diff |= XFRM_SA_DIFF(FLAGS,a->flags != b->flags);
227 diff |= XFRM_SA_DIFF(ALG_AEAD,(strcmp(a->aead->alg_name, b->aead->alg_name) ||
228 (a->aead->alg_key_len != b->aead->alg_key_len) ||
229 (a->aead->alg_icv_len != b->aead->alg_icv_len) ||
230 memcmp(a->aead->alg_key, b->aead->alg_key,
231 ((a->aead->alg_key_len + 7)/8))));
232 diff |= XFRM_SA_DIFF(ALG_AUTH,(strcmp(a->auth->alg_name, b->auth->alg_name) ||
233 (a->auth->alg_key_len != b->auth->alg_key_len) ||
234 (a->auth->alg_trunc_len != b->auth->alg_trunc_len) ||
235 memcmp(a->auth->alg_key, b->auth->alg_key,
236 ((a->auth->alg_key_len + 7)/8))));
237 diff |= XFRM_SA_DIFF(ALG_CRYPT,(strcmp(a->crypt->alg_name, b->crypt->alg_name) ||
238 (a->crypt->alg_key_len != b->crypt->alg_key_len) ||
239 memcmp(a->crypt->alg_key, b->crypt->alg_key,
240 ((a->crypt->alg_key_len + 7)/8))));
241 diff |= XFRM_SA_DIFF(ALG_COMP,(strcmp(a->comp->alg_name, b->comp->alg_name) ||
242 (a->comp->alg_key_len != b->comp->alg_key_len) ||
243 memcmp(a->comp->alg_key, b->comp->alg_key,
244 ((a->comp->alg_key_len + 7)/8))));
245 diff |= XFRM_SA_DIFF(ENCAP,((a->encap->encap_type != b->encap->encap_type) ||
246 (a->encap->encap_sport != b->encap->encap_sport) ||
247 (a->encap->encap_dport != b->encap->encap_dport) ||
248 nl_addr_cmp(a->encap->encap_oa, b->encap->encap_oa)));
249 diff |= XFRM_SA_DIFF(TFCPAD,a->tfcpad != b->tfcpad);
250 diff |= XFRM_SA_DIFF(COADDR,
nl_addr_cmp(a->coaddr, b->coaddr));
251 diff |= XFRM_SA_DIFF(MARK,(a->mark.m != b->mark.m) ||
252 (a->mark.v != b->mark.v));
253 diff |= XFRM_SA_DIFF(SECCTX,((a->sec_ctx->ctx_doi != b->sec_ctx->ctx_doi) ||
254 (a->sec_ctx->ctx_alg != b->sec_ctx->ctx_alg) ||
255 (a->sec_ctx->ctx_len != b->sec_ctx->ctx_len) ||
256 (a->sec_ctx->ctx_sid != b->sec_ctx->ctx_sid) ||
257 strcmp(a->sec_ctx->ctx_str, b->sec_ctx->ctx_str)));
258 diff |= XFRM_SA_DIFF(REPLAY_MAXAGE,a->replay_maxage != b->replay_maxage);
259 diff |= XFRM_SA_DIFF(REPLAY_MAXDIFF,a->replay_maxdiff != b->replay_maxdiff);
260 diff |= XFRM_SA_DIFF(EXPIRE,a->hard != b->hard);
263 found = AVAILABLE_MISMATCH (a, b, XFRM_SA_ATTR_REPLAY_STATE);
266 if (((a->replay_state_esn != NULL) && (b->replay_state_esn == NULL)) ||
267 ((a->replay_state_esn == NULL) && (b->replay_state_esn != NULL)))
272 if (a->replay_state_esn)
274 if (a->replay_state_esn->bmp_len != b->replay_state_esn->bmp_len)
278 uint32_t len =
sizeof (
struct xfrmnl_replay_state_esn) +
279 (a->replay_state_esn->bmp_len *
sizeof (uint32_t));
280 diff |= memcmp (a->replay_state_esn, b->replay_state_esn, len);
285 if ((a->replay_state.oseq != b->replay_state.oseq) ||
286 (a->replay_state.seq != b->replay_state.seq) ||
287 (a->replay_state.bitmap != b->replay_state.bitmap))
301 static const struct trans_tbl sa_attrs[] = {
302 __ADD(XFRM_SA_ATTR_SEL, selector),
303 __ADD(XFRM_SA_ATTR_DADDR, daddr),
304 __ADD(XFRM_SA_ATTR_SPI, spi),
305 __ADD(XFRM_SA_ATTR_PROTO, proto),
306 __ADD(XFRM_SA_ATTR_SADDR, saddr),
307 __ADD(XFRM_SA_ATTR_LTIME_CFG, lifetime_cfg),
308 __ADD(XFRM_SA_ATTR_LTIME_CUR, lifetime_cur),
309 __ADD(XFRM_SA_ATTR_STATS, stats),
310 __ADD(XFRM_SA_ATTR_SEQ, seqnum),
311 __ADD(XFRM_SA_ATTR_REQID, reqid),
312 __ADD(XFRM_SA_ATTR_FAMILY, family),
313 __ADD(XFRM_SA_ATTR_MODE, mode),
314 __ADD(XFRM_SA_ATTR_REPLAY_WIN, replay_window),
315 __ADD(XFRM_SA_ATTR_FLAGS, flags),
316 __ADD(XFRM_SA_ATTR_ALG_AEAD, alg_aead),
317 __ADD(XFRM_SA_ATTR_ALG_AUTH, alg_auth),
318 __ADD(XFRM_SA_ATTR_ALG_CRYPT, alg_crypto),
319 __ADD(XFRM_SA_ATTR_ALG_COMP, alg_comp),
320 __ADD(XFRM_SA_ATTR_ENCAP, encap),
321 __ADD(XFRM_SA_ATTR_TFCPAD, tfcpad),
322 __ADD(XFRM_SA_ATTR_COADDR, coaddr),
323 __ADD(XFRM_SA_ATTR_MARK, mark),
324 __ADD(XFRM_SA_ATTR_SECCTX, sec_ctx),
325 __ADD(XFRM_SA_ATTR_REPLAY_MAXAGE, replay_maxage),
326 __ADD(XFRM_SA_ATTR_REPLAY_MAXDIFF, replay_maxdiff),
327 __ADD(XFRM_SA_ATTR_REPLAY_STATE, replay_state),
328 __ADD(XFRM_SA_ATTR_EXPIRE, expire),
331 static char* xfrm_sa_attrs2str(
int attrs,
char *buf,
size_t len)
333 return __flags2str (attrs, buf, len, sa_attrs, ARRAY_SIZE(sa_attrs));
341 static const struct trans_tbl sa_flags[] = {
342 __ADD(XFRM_STATE_NOECN, no ecn),
343 __ADD(XFRM_STATE_DECAP_DSCP, decap dscp),
344 __ADD(XFRM_STATE_NOPMTUDISC, no pmtu discovery),
345 __ADD(XFRM_STATE_WILDRECV, wild receive),
346 __ADD(XFRM_STATE_ICMP, icmp),
347 __ADD(XFRM_STATE_AF_UNSPEC, unspecified),
348 __ADD(XFRM_STATE_ALIGN4, align4),
349 __ADD(XFRM_STATE_ESN, esn),
352 char* xfrmnl_sa_flags2str(
int flags,
char *buf,
size_t len)
354 return __flags2str (flags, buf, len, sa_flags, ARRAY_SIZE(sa_flags));
357 int xfrmnl_sa_str2flag(
const char *name)
359 return __str2flags (name, sa_flags, ARRAY_SIZE(sa_flags));
367 static const struct trans_tbl sa_modes[] = {
368 __ADD(XFRM_MODE_TRANSPORT, transport),
369 __ADD(XFRM_MODE_TUNNEL, tunnel),
370 __ADD(XFRM_MODE_ROUTEOPTIMIZATION, route optimization),
371 __ADD(XFRM_MODE_IN_TRIGGER, in trigger),
372 __ADD(XFRM_MODE_BEET, beet),
375 char* xfrmnl_sa_mode2str(
int mode,
char *buf,
size_t len)
377 return __type2str (mode, buf, len, sa_modes, ARRAY_SIZE(sa_modes));
380 int xfrmnl_sa_str2mode(
const char *name)
382 return __str2type (name, sa_modes, ARRAY_SIZE(sa_modes));
387 static void xfrm_sa_dump_line(
struct nl_object *a,
struct nl_dump_params *p)
389 char dst[INET6_ADDRSTRLEN+5], src[INET6_ADDRSTRLEN+5];
390 struct xfrmnl_sa* sa = (
struct xfrmnl_sa *) a;
391 char flags[128], mode[128];
392 time_t add_time, use_time;
393 struct tm *add_time_tm, *use_time_tm;
395 nl_dump_line(p,
"src %s dst %s family: %s\n",
nl_addr2str(sa->saddr, src,
sizeof(src)),
397 nl_af2str (sa->family, flags, sizeof (flags)));
399 nl_dump_line(p,
"\tproto %s spi 0x%x reqid %u\n",
400 nl_ip_proto2str (sa->id.proto, flags,
sizeof(flags)),
401 sa->id.spi, sa->reqid);
403 xfrmnl_sa_flags2str(sa->flags, flags, sizeof (flags));
404 xfrmnl_sa_mode2str(sa->mode, mode, sizeof (mode));
405 nl_dump_line(p,
"\tmode: %s flags: %s (0x%x) seq: %u replay window: %u\n",
406 mode, flags, sa->flags, sa->seq, sa->replay_window);
408 nl_dump_line(p,
"\tlifetime configuration: \n");
409 if (sa->lft->soft_byte_limit == XFRM_INF)
410 sprintf (flags,
"INF");
412 sprintf (flags,
"%" PRIu64, sa->lft->soft_byte_limit);
413 if (sa->lft->soft_packet_limit == XFRM_INF)
414 sprintf (mode,
"INF");
416 sprintf (mode,
"%" PRIu64, sa->lft->soft_packet_limit);
417 nl_dump_line(p,
"\t\tsoft limit: %s (bytes), %s (packets)\n", flags, mode);
418 if (sa->lft->hard_byte_limit == XFRM_INF)
419 sprintf (flags,
"INF");
421 sprintf (flags,
"%" PRIu64, sa->lft->hard_byte_limit);
422 if (sa->lft->hard_packet_limit == XFRM_INF)
423 sprintf (mode,
"INF");
425 sprintf (mode,
"%" PRIu64, sa->lft->hard_packet_limit);
426 nl_dump_line(p,
"\t\thard limit: %s (bytes), %s (packets)\n", flags, mode);
427 nl_dump_line(p,
"\t\tsoft add_time: %llu (seconds), soft use_time: %llu (seconds) \n",
428 sa->lft->soft_add_expires_seconds, sa->lft->soft_use_expires_seconds);
429 nl_dump_line(p,
"\t\thard add_time: %llu (seconds), hard use_time: %llu (seconds) \n",
430 sa->lft->hard_add_expires_seconds, sa->lft->hard_use_expires_seconds);
432 nl_dump_line(p,
"\tlifetime current: \n");
433 nl_dump_line(p,
"\t\t%llu bytes, %llu packets\n", sa->curlft.bytes, sa->curlft.packets);
434 if (sa->curlft.add_time != 0)
436 add_time = sa->curlft.add_time;
437 add_time_tm = gmtime (&add_time);
438 strftime (flags, 128,
"%Y-%m-%d %H-%M-%S", add_time_tm);
442 sprintf (flags,
"%s",
"-");
445 if (sa->curlft.use_time != 0)
447 use_time = sa->curlft.use_time;
448 use_time_tm = gmtime (&use_time);
449 strftime (mode, 128,
"%Y-%m-%d %H-%M-%S", use_time_tm);
453 sprintf (mode,
"%s",
"-");
455 nl_dump_line(p,
"\t\tadd_time: %s, use_time: %s\n", flags, mode);
459 nl_dump_line(p,
"\tAEAD Algo: \n");
460 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u ICV Len(bits): %u\n",
461 sa->aead->alg_name, sa->aead->alg_key_len, sa->aead->alg_icv_len);
466 nl_dump_line(p,
"\tAuth Algo: \n");
467 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u Trunc len(bits): %u\n",
468 sa->auth->alg_name, sa->auth->alg_key_len, sa->auth->alg_trunc_len);
473 nl_dump_line(p,
"\tEncryption Algo: \n");
474 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u\n",
475 sa->crypt->alg_name, sa->crypt->alg_key_len);
480 nl_dump_line(p,
"\tCompression Algo: \n");
481 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u\n",
482 sa->comp->alg_name, sa->comp->alg_key_len);
487 nl_dump_line(p,
"\tEncapsulation template: \n");
488 nl_dump_line(p,
"\t\tType: %d Src port: %d Dst port: %d Encap addr: %s\n",
489 sa->encap->encap_type, sa->encap->encap_sport, sa->encap->encap_dport,
490 nl_addr2str (sa->encap->encap_oa, dst, sizeof (dst)));
493 if (sa->ce_mask & XFRM_SA_ATTR_TFCPAD)
494 nl_dump_line(p,
"\tTFC Pad: %u\n", sa->tfcpad);
496 if (sa->ce_mask & XFRM_SA_ATTR_COADDR)
497 nl_dump_line(p,
"\tCO Address: %s\n",
nl_addr2str (sa->coaddr, dst, sizeof (dst)));
499 if (sa->ce_mask & XFRM_SA_ATTR_MARK)
500 nl_dump_line(p,
"\tMark mask: 0x%x Mark value: 0x%x\n", sa->mark.m, sa->mark.v);
502 if (sa->ce_mask & XFRM_SA_ATTR_SECCTX)
503 nl_dump_line(p,
"\tDOI: %d Algo: %d Len: %u SID: %u ctx: %s\n", sa->sec_ctx->ctx_doi,
504 sa->sec_ctx->ctx_alg, sa->sec_ctx->ctx_len, sa->sec_ctx->ctx_sid, sa->sec_ctx->ctx_str);
506 nl_dump_line(p,
"\treplay info: \n");
507 nl_dump_line(p,
"\t\tmax age %u max diff %u \n", sa->replay_maxage, sa->replay_maxdiff);
509 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
511 nl_dump_line(p,
"\treplay state info: \n");
512 if (sa->replay_state_esn)
514 nl_dump_line(p,
"\t\toseq %u seq %u oseq_hi %u seq_hi %u replay window: %u \n",
515 sa->replay_state_esn->oseq, sa->replay_state_esn->seq,
516 sa->replay_state_esn->oseq_hi, sa->replay_state_esn->seq_hi,
517 sa->replay_state_esn->replay_window);
521 nl_dump_line(p,
"\t\toseq %u seq %u bitmap: %u \n", sa->replay_state.oseq,
522 sa->replay_state.seq, sa->replay_state.bitmap);
526 nl_dump_line(p,
"\tselector info: \n");
527 xfrmnl_sel_dump (sa->sel, p);
529 nl_dump_line(p,
"\tHard: %d\n", sa->hard);
534 static void xfrm_sa_dump_stats(
struct nl_object *a,
struct nl_dump_params *p)
536 struct xfrmnl_sa* sa = (
struct xfrmnl_sa*)a;
538 nl_dump_line(p,
"\tstats: \n");
539 nl_dump_line(p,
"\t\treplay window: %u replay: %u integrity failed: %u \n",
540 sa->stats.replay_window, sa->stats.replay, sa->stats.integrity_failed);
545 static void xfrm_sa_dump_details(
struct nl_object *a,
struct nl_dump_params *p)
547 xfrm_sa_dump_line(a, p);
548 xfrm_sa_dump_stats (a, p);
556 struct xfrmnl_sa* xfrmnl_sa_alloc(
void)
561 void xfrmnl_sa_put(
struct xfrmnl_sa* sa)
583 int xfrmnl_sa_alloc_cache(
struct nl_sock *sock,
struct nl_cache **result)
596 struct xfrmnl_sa* xfrmnl_sa_get(
struct nl_cache* cache,
struct nl_addr* daddr,
597 unsigned int spi,
unsigned int proto)
599 struct xfrmnl_sa *sa;
606 if (sa->id.proto == proto &&
623 static struct nla_policy xfrm_sa_policy[XFRMA_MAX+1] = {
624 [XFRMA_SA] = { .
minlen =
sizeof(
struct xfrm_usersa_info)},
625 [XFRMA_ALG_AUTH_TRUNC] = { .minlen =
sizeof(
struct xfrm_algo_auth)},
626 [XFRMA_ALG_AEAD] = { .minlen =
sizeof(
struct xfrm_algo_aead) },
627 [XFRMA_ALG_AUTH] = { .minlen =
sizeof(
struct xfrm_algo) },
628 [XFRMA_ALG_CRYPT] = { .minlen =
sizeof(
struct xfrm_algo) },
629 [XFRMA_ALG_COMP] = { .minlen =
sizeof(
struct xfrm_algo) },
630 [XFRMA_ENCAP] = { .minlen =
sizeof(
struct xfrm_encap_tmpl) },
631 [XFRMA_TMPL] = { .minlen =
sizeof(
struct xfrm_user_tmpl) },
632 [XFRMA_SEC_CTX] = { .minlen =
sizeof(
struct xfrm_sec_ctx) },
633 [XFRMA_LTIME_VAL] = { .minlen =
sizeof(
struct xfrm_lifetime_cur) },
634 [XFRMA_REPLAY_VAL] = { .minlen =
sizeof(
struct xfrm_replay_state) },
635 [XFRMA_REPLAY_THRESH] = { .type =
NLA_U32 },
636 [XFRMA_ETIMER_THRESH] = { .type =
NLA_U32 },
637 [XFRMA_SRCADDR] = { .minlen =
sizeof(xfrm_address_t) },
638 [XFRMA_COADDR] = { .minlen =
sizeof(xfrm_address_t) },
639 [XFRMA_MARK] = { .minlen =
sizeof(
struct xfrm_mark) },
640 [XFRMA_TFCPAD] = { .type =
NLA_U32 },
641 [XFRMA_REPLAY_ESN_VAL] = { .minlen =
sizeof(
struct xfrm_replay_state_esn) },
644 static int xfrm_sa_request_update(
struct nl_cache *c,
struct nl_sock *h)
646 struct xfrm_id sa_id;
648 memset ((
void *)&sa_id, 0,
sizeof (
struct xfrm_id));
649 return nl_send_simple (h, XFRM_MSG_GETSA, NLM_F_DUMP,(
void*)&sa_id,
sizeof (
struct xfrm_id));
652 int xfrmnl_sa_parse(
struct nlmsghdr *n,
struct xfrmnl_sa **result)
654 struct xfrmnl_sa* sa;
655 struct nlattr *tb[XFRMA_MAX + 1];
656 struct xfrm_usersa_info* sa_info;
657 struct xfrm_user_expire* ue;
659 struct nl_addr* addr;
661 sa = xfrmnl_sa_alloc();
667 sa->ce_msgtype = n->nlmsg_type;
668 if (n->nlmsg_type == XFRM_MSG_EXPIRE)
671 sa_info = &ue->state;
673 sa->ce_mask |= XFRM_SA_ATTR_EXPIRE;
675 else if (n->nlmsg_type == XFRM_MSG_DELSA)
677 sa_info = (
struct xfrm_usersa_info*)(
nlmsg_data(n) +
sizeof (
struct xfrm_usersa_id) + NLA_HDRLEN);
684 err =
nlmsg_parse(n,
sizeof(
struct xfrm_usersa_info), tb, XFRMA_MAX, xfrm_sa_policy);
688 if (sa_info->sel.family == AF_INET)
689 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.daddr.a4, sizeof (sa_info->sel.daddr.a4));
691 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.daddr.a6, sizeof (sa_info->sel.daddr.a6));
693 xfrmnl_sel_set_daddr (sa->sel, addr);
694 xfrmnl_sel_set_prefixlen_d (sa->sel, sa_info->sel.prefixlen_d);
696 if (sa_info->sel.family == AF_INET)
697 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.saddr.a4, sizeof (sa_info->sel.saddr.a4));
699 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.saddr.a6, sizeof (sa_info->sel.saddr.a6));
701 xfrmnl_sel_set_saddr (sa->sel, addr);
702 xfrmnl_sel_set_prefixlen_s (sa->sel, sa_info->sel.prefixlen_s);
704 xfrmnl_sel_set_dport (sa->sel, ntohs(sa_info->sel.dport));
705 xfrmnl_sel_set_dportmask (sa->sel, ntohs(sa_info->sel.dport_mask));
706 xfrmnl_sel_set_sport (sa->sel, ntohs(sa_info->sel.sport));
707 xfrmnl_sel_set_sportmask (sa->sel, ntohs(sa_info->sel.sport_mask));
708 xfrmnl_sel_set_family (sa->sel, sa_info->sel.family);
709 xfrmnl_sel_set_proto (sa->sel, sa_info->sel.proto);
710 xfrmnl_sel_set_ifindex (sa->sel, sa_info->sel.ifindex);
711 xfrmnl_sel_set_userid (sa->sel, sa_info->sel.user);
712 sa->ce_mask |= XFRM_SA_ATTR_SEL;
714 if (sa_info->family == AF_INET)
715 sa->id.daddr =
nl_addr_build (sa_info->family, &sa_info->id.daddr.a4, sizeof (sa_info->id.daddr.a4));
717 sa->id.daddr =
nl_addr_build (sa_info->family, &sa_info->id.daddr.a6, sizeof (sa_info->id.daddr.a6));
718 sa->id.spi = ntohl(sa_info->id.spi);
719 sa->id.proto = sa_info->id.proto;
720 sa->ce_mask |= (XFRM_SA_ATTR_DADDR | XFRM_SA_ATTR_SPI | XFRM_SA_ATTR_PROTO);
722 if (sa_info->family == AF_INET)
723 sa->saddr =
nl_addr_build (sa_info->family, &sa_info->saddr.a4, sizeof (sa_info->saddr.a4));
725 sa->saddr =
nl_addr_build (sa_info->family, &sa_info->saddr.a6, sizeof (sa_info->saddr.a6));
726 sa->ce_mask |= XFRM_SA_ATTR_SADDR;
728 sa->lft->soft_byte_limit = sa_info->lft.soft_byte_limit;
729 sa->lft->hard_byte_limit = sa_info->lft.hard_byte_limit;
730 sa->lft->soft_packet_limit = sa_info->lft.soft_packet_limit;
731 sa->lft->hard_packet_limit = sa_info->lft.hard_packet_limit;
732 sa->lft->soft_add_expires_seconds = sa_info->lft.soft_add_expires_seconds;
733 sa->lft->hard_add_expires_seconds = sa_info->lft.hard_add_expires_seconds;
734 sa->lft->soft_use_expires_seconds = sa_info->lft.soft_use_expires_seconds;
735 sa->lft->hard_use_expires_seconds = sa_info->lft.hard_use_expires_seconds;
736 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CFG;
738 sa->curlft.bytes = sa_info->curlft.bytes;
739 sa->curlft.packets = sa_info->curlft.packets;
740 sa->curlft.add_time = sa_info->curlft.add_time;
741 sa->curlft.use_time = sa_info->curlft.use_time;
742 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CUR;
744 sa->stats.replay_window = sa_info->stats.replay_window;
745 sa->stats.replay = sa_info->stats.replay;
746 sa->stats.integrity_failed = sa_info->stats.integrity_failed;
747 sa->ce_mask |= XFRM_SA_ATTR_STATS;
749 sa->seq = sa_info->seq;
750 sa->reqid = sa_info->reqid;
751 sa->family = sa_info->family;
752 sa->mode = sa_info->mode;
753 sa->replay_window = sa_info->replay_window;
754 sa->flags = sa_info->flags;
755 sa->ce_mask |= (XFRM_SA_ATTR_SEQ | XFRM_SA_ATTR_REQID |
756 XFRM_SA_ATTR_FAMILY | XFRM_SA_ATTR_MODE |
757 XFRM_SA_ATTR_REPLAY_WIN | XFRM_SA_ATTR_FLAGS);
759 if (tb[XFRMA_ALG_AEAD]) {
760 struct xfrm_algo_aead* aead =
nla_data(tb[XFRMA_ALG_AEAD]);
761 len =
sizeof (
struct xfrmnl_algo_aead) + ((aead->alg_key_len + 7) / 8);
762 if ((sa->aead = calloc (1, len)) == NULL)
767 memcpy ((
void *)sa->aead, (
void *)aead, len);
768 sa->ce_mask |= XFRM_SA_ATTR_ALG_AEAD;
771 if (tb[XFRMA_ALG_AUTH_TRUNC]) {
772 struct xfrm_algo_auth* auth =
nla_data(tb[XFRMA_ALG_AUTH_TRUNC]);
773 len =
sizeof (
struct xfrmnl_algo_auth) + ((auth->alg_key_len + 7) / 8);
774 if ((sa->auth = calloc (1, len)) == NULL)
779 memcpy ((
void *)sa->auth, (
void *)auth, len);
780 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
783 if (tb[XFRMA_ALG_AUTH] && !sa->auth) {
784 struct xfrm_algo* auth =
nla_data(tb[XFRMA_ALG_AUTH]);
785 len =
sizeof (
struct xfrmnl_algo_auth) + ((auth->alg_key_len + 7) / 8);
786 if ((sa->auth = calloc (1, len)) == NULL)
791 strcpy(sa->auth->alg_name, auth->alg_name);
792 memcpy(sa->auth->alg_key, auth->alg_key, (auth->alg_key_len + 7) / 8);
793 sa->auth->alg_key_len = auth->alg_key_len;
794 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
797 if (tb[XFRMA_ALG_CRYPT]) {
798 struct xfrm_algo* crypt =
nla_data(tb[XFRMA_ALG_CRYPT]);
799 len =
sizeof (
struct xfrmnl_algo) + ((crypt->alg_key_len + 7) / 8);
800 if ((sa->crypt = calloc (1, len)) == NULL)
805 memcpy ((
void *)sa->crypt, (
void *)crypt, len);
806 sa->ce_mask |= XFRM_SA_ATTR_ALG_CRYPT;
809 if (tb[XFRMA_ALG_COMP]) {
810 struct xfrm_algo* comp =
nla_data(tb[XFRMA_ALG_COMP]);
811 len =
sizeof (
struct xfrmnl_algo) + ((comp->alg_key_len + 7) / 8);
812 if ((sa->comp = calloc (1, len)) == NULL)
817 memcpy ((
void *)sa->comp, (
void *)comp, len);
818 sa->ce_mask |= XFRM_SA_ATTR_ALG_COMP;
821 if (tb[XFRMA_ENCAP]) {
822 struct xfrm_encap_tmpl* encap =
nla_data(tb[XFRMA_ENCAP]);
823 len =
sizeof (
struct xfrmnl_encap_tmpl);
824 if ((sa->encap = calloc (1, len)) == NULL)
829 sa->encap->encap_type = encap->encap_type;
830 sa->encap->encap_sport = ntohs(encap->encap_sport);
831 sa->encap->encap_dport = ntohs(encap->encap_dport);
832 if (sa_info->family == AF_INET)
833 sa->encap->encap_oa =
nl_addr_build (sa_info->family, &encap->encap_oa.a4, sizeof (encap->encap_oa.a4));
835 sa->encap->encap_oa =
nl_addr_build (sa_info->family, &encap->encap_oa.a6, sizeof (encap->encap_oa.a6));
836 sa->ce_mask |= XFRM_SA_ATTR_ENCAP;
839 if (tb[XFRMA_TFCPAD]) {
840 sa->tfcpad = *(uint32_t*)
nla_data(tb[XFRMA_TFCPAD]);
841 sa->ce_mask |= XFRM_SA_ATTR_TFCPAD;
844 if (tb[XFRMA_COADDR]) {
845 if (sa_info->family == AF_INET)
853 sizeof (uint32_t) * 4);
855 sa->ce_mask |= XFRM_SA_ATTR_COADDR;
858 if (tb[XFRMA_MARK]) {
859 struct xfrm_mark* m =
nla_data(tb[XFRMA_MARK]);
862 sa->ce_mask |= XFRM_SA_ATTR_MARK;
865 if (tb[XFRMA_SEC_CTX]) {
866 struct xfrm_sec_ctx* sec_ctx =
nla_data(tb[XFRMA_SEC_CTX]);
867 len =
sizeof (
struct xfrmnl_sec_ctx) + sec_ctx->ctx_len;
868 if ((sa->sec_ctx = calloc (1, len)) == NULL)
873 memcpy ((
void *)sa->sec_ctx, (
void *)sec_ctx, len);
874 sa->ce_mask |= XFRM_SA_ATTR_SECCTX;
877 if (tb[XFRMA_ETIMER_THRESH]) {
878 sa->replay_maxage = *(uint32_t*)
nla_data(tb[XFRMA_ETIMER_THRESH]);
879 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXAGE;
882 if (tb[XFRMA_REPLAY_THRESH]) {
883 sa->replay_maxdiff = *(uint32_t*)
nla_data(tb[XFRMA_REPLAY_THRESH]);
884 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXDIFF;
887 if (tb[XFRMA_REPLAY_ESN_VAL]) {
888 struct xfrm_replay_state_esn* esn =
nla_data (tb[XFRMA_REPLAY_ESN_VAL]);
889 len =
sizeof (
struct xfrmnl_replay_state_esn) + (sizeof (uint32_t) * esn->bmp_len);
890 if ((sa->replay_state_esn = calloc (1, len)) == NULL)
895 memcpy ((
void *)sa->replay_state_esn, (
void *)esn, len);
896 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
898 else if (tb[XFRMA_REPLAY_VAL])
900 struct xfrm_replay_state* replay_state =
nla_data (tb[XFRMA_REPLAY_VAL]);
901 sa->replay_state.oseq = replay_state->oseq;
902 sa->replay_state.seq = replay_state->seq;
903 sa->replay_state.bitmap = replay_state->bitmap;
904 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
905 sa->replay_state_esn = NULL;
916 static int xfrm_sa_update_cache (
struct nl_cache *cache,
struct nl_object *obj,
917 change_func_t change_cb,
void *data)
919 struct nl_object* old_sa;
920 struct xfrmnl_sa* sa = (
struct xfrmnl_sa*)obj;
946 if (old_sa == NULL && change_cb)
950 change_cb (cache, obj, NL_ACT_NEW, data);
957 change_cb (cache, obj, NL_ACT_CHANGE, data);
966 change_cb (cache, obj, NL_ACT_DEL, data);
977 return nl_cache_include (cache, obj, change_cb, data);
981 static int xfrm_sa_msg_parser(
struct nl_cache_ops *ops,
struct sockaddr_nl *who,
982 struct nlmsghdr *n,
struct nl_parser_param *pp)
984 struct xfrmnl_sa* sa;
987 if ((err = xfrmnl_sa_parse(n, &sa)) < 0)
990 err = pp->pp_cb((
struct nl_object *) sa, pp);
1001 int xfrmnl_sa_build_get_request(
struct nl_addr* daddr,
unsigned int spi,
unsigned int protocol,
unsigned int mark_v,
unsigned int mark_m,
struct nl_msg **result)
1004 struct xfrm_usersa_id sa_id;
1005 struct xfrm_mark mark;
1009 fprintf(stderr,
"APPLICATION BUG: %s:%d:%s: A valid destination address, spi must be specified\n",
1010 __FILE__, __LINE__, __PRETTY_FUNCTION__);
1012 return -NLE_MISSING_ATTR;
1015 memset(&sa_id, 0,
sizeof(sa_id));
1018 sa_id.spi = htonl(spi);
1019 sa_id.proto = protocol;
1024 if (
nlmsg_append(msg, &sa_id,
sizeof(sa_id), NLMSG_ALIGNTO) < 0)
1025 goto nla_put_failure;
1027 if ((mark_m & mark_v) != 0)
1029 memset(&mark, 0,
sizeof(
struct xfrm_mark));
1033 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &mark);
1041 return -NLE_MSGSIZE;
1044 int xfrmnl_sa_get_kernel(
struct nl_sock* sock,
struct nl_addr* daddr,
unsigned int spi,
unsigned int protocol,
unsigned int mark_v,
unsigned int mark_m,
struct xfrmnl_sa** result)
1046 struct nl_msg *msg = NULL;
1047 struct nl_object *obj;
1050 if ((err = xfrmnl_sa_build_get_request(daddr, spi, protocol, mark_m, mark_v, &msg)) < 0)
1058 if ((err =
nl_pickup(sock, &xfrm_sa_msg_parser, &obj)) < 0)
1062 *result = (
struct xfrmnl_sa *) obj;
1065 if (err == 0 && obj)
1073 static int build_xfrm_sa_message(
struct xfrmnl_sa *tmpl,
int cmd,
int flags,
struct nl_msg **result)
1076 struct xfrm_usersa_info sa_info;
1078 struct nl_addr* addr;
1080 if (!(tmpl->ce_mask & XFRM_SA_ATTR_DADDR) ||
1081 !(tmpl->ce_mask & XFRM_SA_ATTR_SPI) ||
1082 !(tmpl->ce_mask & XFRM_SA_ATTR_PROTO))
1083 return -NLE_MISSING_ATTR;
1085 memset ((
void*)&sa_info, 0,
sizeof (sa_info));
1086 if (tmpl->ce_mask & XFRM_SA_ATTR_SEL)
1088 addr = xfrmnl_sel_get_daddr (tmpl->sel);
1090 addr = xfrmnl_sel_get_saddr (tmpl->sel);
1092 sa_info.sel.dport = htons (xfrmnl_sel_get_dport (tmpl->sel));
1093 sa_info.sel.dport_mask = htons (xfrmnl_sel_get_dportmask (tmpl->sel));
1094 sa_info.sel.sport = htons (xfrmnl_sel_get_sport (tmpl->sel));
1095 sa_info.sel.sport_mask = htons (xfrmnl_sel_get_sportmask (tmpl->sel));
1096 sa_info.sel.family = xfrmnl_sel_get_family (tmpl->sel);
1097 sa_info.sel.prefixlen_d = xfrmnl_sel_get_prefixlen_d (tmpl->sel);
1098 sa_info.sel.prefixlen_s = xfrmnl_sel_get_prefixlen_s (tmpl->sel);
1099 sa_info.sel.proto = xfrmnl_sel_get_proto (tmpl->sel);
1100 sa_info.sel.ifindex = xfrmnl_sel_get_ifindex (tmpl->sel);
1101 sa_info.sel.user = xfrmnl_sel_get_userid (tmpl->sel);
1105 sa_info.id.spi = htonl(tmpl->id.spi);
1106 sa_info.id.proto = tmpl->id.proto;
1108 if (tmpl->ce_mask & XFRM_SA_ATTR_SADDR)
1111 if (tmpl->ce_mask & XFRM_SA_ATTR_LTIME_CFG)
1113 sa_info.lft.soft_byte_limit = xfrmnl_ltime_cfg_get_soft_bytelimit (tmpl->lft);
1114 sa_info.lft.hard_byte_limit = xfrmnl_ltime_cfg_get_hard_bytelimit (tmpl->lft);
1115 sa_info.lft.soft_packet_limit = xfrmnl_ltime_cfg_get_soft_packetlimit (tmpl->lft);
1116 sa_info.lft.hard_packet_limit = xfrmnl_ltime_cfg_get_hard_packetlimit (tmpl->lft);
1117 sa_info.lft.soft_add_expires_seconds = xfrmnl_ltime_cfg_get_soft_addexpires (tmpl->lft);
1118 sa_info.lft.hard_add_expires_seconds = xfrmnl_ltime_cfg_get_hard_addexpires (tmpl->lft);
1119 sa_info.lft.soft_use_expires_seconds = xfrmnl_ltime_cfg_get_soft_useexpires (tmpl->lft);
1120 sa_info.lft.hard_use_expires_seconds = xfrmnl_ltime_cfg_get_hard_useexpires (tmpl->lft);
1127 if (tmpl->ce_mask & XFRM_SA_ATTR_REQID)
1128 sa_info.reqid = tmpl->reqid;
1130 if (tmpl->ce_mask & XFRM_SA_ATTR_FAMILY)
1131 sa_info.family = tmpl->family;
1133 if (tmpl->ce_mask & XFRM_SA_ATTR_MODE)
1134 sa_info.mode = tmpl->mode;
1136 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_WIN)
1137 sa_info.replay_window = tmpl->replay_window;
1139 if (tmpl->ce_mask & XFRM_SA_ATTR_FLAGS)
1140 sa_info.flags = tmpl->flags;
1146 if (
nlmsg_append(msg, &sa_info,
sizeof(sa_info), NLMSG_ALIGNTO) < 0)
1147 goto nla_put_failure;
1149 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_AEAD) {
1150 len =
sizeof (
struct xfrm_algo_aead) + ((tmpl->aead->alg_key_len + 7) / 8);
1151 NLA_PUT (msg, XFRMA_ALG_AEAD, len, tmpl->aead);
1154 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_AUTH) {
1155 struct xfrm_algo* auth;
1156 struct nlattr * auth_attr;
1158 len =
sizeof (
struct xfrm_algo) + ((tmpl->auth->alg_key_len + 7) / 8);
1159 auth_attr =
nla_reserve(msg, XFRMA_ALG_AUTH, len);
1161 goto nla_put_failure;
1163 strcpy(auth->alg_name, tmpl->auth->alg_name);
1164 memcpy(auth->alg_key, tmpl->auth->alg_key, (tmpl->auth->alg_key_len + 7) / 8);
1165 auth->alg_key_len = tmpl->auth->alg_key_len;
1167 len =
sizeof (
struct xfrm_algo_auth) + ((tmpl->auth->alg_key_len + 7) / 8);
1168 NLA_PUT (msg, XFRMA_ALG_AUTH_TRUNC, len, tmpl->auth);
1171 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_CRYPT) {
1172 len =
sizeof (
struct xfrm_algo) + ((tmpl->crypt->alg_key_len + 7) / 8);
1173 NLA_PUT (msg, XFRMA_ALG_CRYPT, len, tmpl->crypt);
1176 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_COMP) {
1177 len =
sizeof (
struct xfrm_algo) + ((tmpl->comp->alg_key_len + 7) / 8);
1178 NLA_PUT (msg, XFRMA_ALG_COMP, len, tmpl->comp);
1181 if (tmpl->ce_mask & XFRM_SA_ATTR_ENCAP) {
1182 struct xfrm_encap_tmpl* encap_tmpl;
1183 struct nlattr* encap_attr;
1185 len =
sizeof (
struct xfrm_encap_tmpl);
1188 goto nla_put_failure;
1189 encap_tmpl =
nla_data (encap_attr);
1190 encap_tmpl->encap_type = tmpl->encap->encap_type;
1191 encap_tmpl->encap_sport = htons (tmpl->encap->encap_sport);
1192 encap_tmpl->encap_dport = htons (tmpl->encap->encap_dport);
1196 if (tmpl->ce_mask & XFRM_SA_ATTR_TFCPAD) {
1200 if (tmpl->ce_mask & XFRM_SA_ATTR_COADDR) {
1201 NLA_PUT (msg, XFRMA_COADDR,
sizeof (xfrm_address_t), tmpl->coaddr);
1204 if (tmpl->ce_mask & XFRM_SA_ATTR_MARK) {
1205 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &tmpl->mark);
1208 if (tmpl->ce_mask & XFRM_SA_ATTR_SECCTX) {
1209 len =
sizeof (
struct xfrm_sec_ctx) + tmpl->sec_ctx->ctx_len;
1210 NLA_PUT (msg, XFRMA_SEC_CTX, len, tmpl->sec_ctx);
1213 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_MAXAGE) {
1214 NLA_PUT_U32 (msg, XFRMA_ETIMER_THRESH, tmpl->replay_maxage);
1217 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_MAXDIFF) {
1218 NLA_PUT_U32 (msg, XFRMA_REPLAY_THRESH, tmpl->replay_maxdiff);
1221 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_STATE) {
1222 if (tmpl->replay_state_esn) {
1223 len =
sizeof (
struct xfrm_replay_state_esn) + (sizeof (uint32_t) * tmpl->replay_state_esn->bmp_len);
1224 NLA_PUT (msg, XFRMA_REPLAY_ESN_VAL, len, tmpl->replay_state_esn);
1227 NLA_PUT (msg, XFRMA_REPLAY_VAL,
sizeof (
struct xfrm_replay_state), &tmpl->replay_state);
1236 return -NLE_MSGSIZE;
1244 int xfrmnl_sa_build_add_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1246 return build_xfrm_sa_message (tmpl, XFRM_MSG_NEWSA, flags, result);
1249 int xfrmnl_sa_add(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1254 if ((err = xfrmnl_sa_build_add_request(tmpl, flags, &msg)) < 0)
1270 int xfrmnl_sa_build_update_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1272 return build_xfrm_sa_message (tmpl, XFRM_MSG_UPDSA, flags, result);
1275 int xfrmnl_sa_update(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1280 if ((err = xfrmnl_sa_build_update_request(tmpl, flags, &msg)) < 0)
1293 static int build_xfrm_sa_delete_message(
struct xfrmnl_sa *tmpl,
int cmd,
int flags,
struct nl_msg **result)
1296 struct xfrm_usersa_id sa_id;
1298 if (!(tmpl->ce_mask & XFRM_SA_ATTR_DADDR) ||
1299 !(tmpl->ce_mask & XFRM_SA_ATTR_SPI) ||
1300 !(tmpl->ce_mask & XFRM_SA_ATTR_PROTO))
1301 return -NLE_MISSING_ATTR;
1306 sa_id.spi = htonl(tmpl->id.spi);
1307 sa_id.proto = tmpl->id.proto;
1313 if (
nlmsg_append(msg, &sa_id,
sizeof(sa_id), NLMSG_ALIGNTO) < 0)
1314 goto nla_put_failure;
1316 if (tmpl->ce_mask & XFRM_SA_ATTR_MARK) {
1317 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &tmpl->mark);
1325 return -NLE_MSGSIZE;
1333 int xfrmnl_sa_build_delete_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1335 return build_xfrm_sa_delete_message (tmpl, XFRM_MSG_DELSA, flags, result);
1338 int xfrmnl_sa_delete(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1343 if ((err = xfrmnl_sa_build_delete_request(tmpl, flags, &msg)) < 0)
1362 struct xfrmnl_sel* xfrmnl_sa_get_sel (
struct xfrmnl_sa* sa)
1364 if (sa->ce_mask & XFRM_SA_ATTR_SEL)
1370 int xfrmnl_sa_set_sel (
struct xfrmnl_sa* sa,
struct xfrmnl_sel* sel)
1374 xfrmnl_sel_put (sa->sel);
1377 xfrmnl_sel_get (sel);
1379 sa->ce_mask |= XFRM_SA_ATTR_SEL;
1384 static inline int __assign_addr(
struct xfrmnl_sa* sa,
struct nl_addr **pos,
1385 struct nl_addr *
new,
int flag,
int nocheck)
1389 if (sa->ce_mask & XFRM_SA_ATTR_FAMILY)
1392 return -NLE_AF_MISMATCH;
1402 sa->ce_mask |= flag;
1408 struct nl_addr* xfrmnl_sa_get_daddr (
struct xfrmnl_sa* sa)
1410 if (sa->ce_mask & XFRM_SA_ATTR_DADDR)
1411 return sa->id.daddr;
1416 int xfrmnl_sa_set_daddr (
struct xfrmnl_sa* sa,
struct nl_addr* addr)
1418 return __assign_addr(sa, &sa->id.daddr, addr, XFRM_SA_ATTR_DADDR, 0);
1421 int xfrmnl_sa_get_spi (
struct xfrmnl_sa* sa)
1423 if (sa->ce_mask & XFRM_SA_ATTR_SPI)
1429 int xfrmnl_sa_set_spi (
struct xfrmnl_sa* sa,
unsigned int spi)
1432 sa->ce_mask |= XFRM_SA_ATTR_SPI;
1437 int xfrmnl_sa_get_proto (
struct xfrmnl_sa* sa)
1439 if (sa->ce_mask & XFRM_SA_ATTR_PROTO)
1440 return sa->id.proto;
1445 int xfrmnl_sa_set_proto (
struct xfrmnl_sa* sa,
unsigned int protocol)
1447 sa->id.proto = protocol;
1448 sa->ce_mask |= XFRM_SA_ATTR_PROTO;
1453 struct nl_addr* xfrmnl_sa_get_saddr (
struct xfrmnl_sa* sa)
1455 if (sa->ce_mask & XFRM_SA_ATTR_SADDR)
1461 int xfrmnl_sa_set_saddr (
struct xfrmnl_sa* sa,
struct nl_addr* addr)
1463 return __assign_addr(sa, &sa->saddr, addr, XFRM_SA_ATTR_SADDR, 1);
1466 struct xfrmnl_ltime_cfg* xfrmnl_sa_get_lifetime_cfg (
struct xfrmnl_sa* sa)
1468 if (sa->ce_mask & XFRM_SA_ATTR_LTIME_CFG)
1474 int xfrmnl_sa_set_lifetime_cfg (
struct xfrmnl_sa* sa,
struct xfrmnl_ltime_cfg* ltime)
1478 xfrmnl_ltime_cfg_put (sa->lft);
1481 xfrmnl_ltime_cfg_get (ltime);
1483 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CFG;
1488 int xfrmnl_sa_get_curlifetime (
struct xfrmnl_sa* sa,
unsigned long long int* curr_bytes,
1489 unsigned long long int* curr_packets,
unsigned long long int* curr_add_time,
unsigned long long int* curr_use_time)
1491 if (sa == NULL || curr_bytes == NULL || curr_packets == NULL || curr_add_time == NULL || curr_use_time == NULL)
1494 if (sa->ce_mask & XFRM_SA_ATTR_LTIME_CUR)
1496 *curr_bytes = sa->curlft.bytes;
1497 *curr_packets = sa->curlft.packets;
1498 *curr_add_time = sa->curlft.add_time;
1499 *curr_use_time = sa->curlft.use_time;
1507 int xfrmnl_sa_get_stats (
struct xfrmnl_sa* sa,
unsigned long long int* replay_window,
1508 unsigned long long int* replay,
unsigned long long int* integrity_failed)
1510 if (sa == NULL || replay_window == NULL || replay == NULL || integrity_failed == NULL)
1513 if (sa->ce_mask & XFRM_SA_ATTR_STATS)
1515 *replay_window = sa->stats.replay_window;
1516 *replay = sa->stats.replay;
1517 *integrity_failed = sa->stats.integrity_failed;
1525 int xfrmnl_sa_get_seq (
struct xfrmnl_sa* sa)
1527 if (sa->ce_mask & XFRM_SA_ATTR_SEQ)
1533 int xfrmnl_sa_get_reqid (
struct xfrmnl_sa* sa)
1535 if (sa->ce_mask & XFRM_SA_ATTR_REQID)
1541 int xfrmnl_sa_set_reqid (
struct xfrmnl_sa* sa,
unsigned int reqid)
1544 sa->ce_mask |= XFRM_SA_ATTR_REQID;
1549 int xfrmnl_sa_get_family (
struct xfrmnl_sa* sa)
1551 if (sa->ce_mask & XFRM_SA_ATTR_FAMILY)
1557 int xfrmnl_sa_set_family (
struct xfrmnl_sa* sa,
unsigned int family)
1559 sa->family = family;
1560 sa->ce_mask |= XFRM_SA_ATTR_FAMILY;
1565 int xfrmnl_sa_get_mode (
struct xfrmnl_sa* sa)
1567 if (sa->ce_mask & XFRM_SA_ATTR_MODE)
1573 int xfrmnl_sa_set_mode (
struct xfrmnl_sa* sa,
unsigned int mode)
1576 sa->ce_mask |= XFRM_SA_ATTR_MODE;
1581 int xfrmnl_sa_get_replay_window (
struct xfrmnl_sa* sa)
1583 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_WIN)
1584 return sa->replay_window;
1589 int xfrmnl_sa_set_replay_window (
struct xfrmnl_sa* sa,
unsigned int replay_window)
1591 sa->replay_window = replay_window;
1592 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_WIN;
1597 int xfrmnl_sa_get_flags (
struct xfrmnl_sa* sa)
1599 if (sa->ce_mask & XFRM_SA_ATTR_FLAGS)
1605 int xfrmnl_sa_set_flags (
struct xfrmnl_sa* sa,
unsigned int flags)
1608 sa->ce_mask |= XFRM_SA_ATTR_FLAGS;
1613 int xfrmnl_sa_get_aead_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
unsigned int* icv_len,
char* key)
1615 if (sa->ce_mask & XFRM_SA_ATTR_ALG_AEAD)
1617 strcpy (alg_name, sa->aead->alg_name);
1618 *key_len = sa->aead->alg_key_len;
1619 *icv_len = sa->aead->alg_icv_len;
1620 memcpy ((
void *)key, (
void *)sa->aead->alg_key, ((sa->aead->alg_key_len + 7)/8));
1628 int xfrmnl_sa_set_aead_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int key_len,
unsigned int icv_len,
char* key)
1630 uint32_t newlen =
sizeof (
struct xfrmnl_algo_aead) + (sizeof (uint8_t) * ((key_len + 7)/8));
1635 if ((sa->aead = calloc (1, newlen)) == NULL)
1639 strcpy (sa->aead->alg_name, alg_name);
1640 sa->aead->alg_key_len = key_len;
1641 sa->aead->alg_icv_len = icv_len;
1642 memcpy ((
void *)sa->aead->alg_key, (
void *)key, newlen);
1644 sa->ce_mask |= XFRM_SA_ATTR_ALG_AEAD;
1649 int xfrmnl_sa_get_auth_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
unsigned int* trunc_len,
char* key)
1651 if (sa->ce_mask & XFRM_SA_ATTR_ALG_AUTH)
1653 strcpy (alg_name, sa->auth->alg_name);
1654 *key_len = sa->auth->alg_key_len;
1655 *trunc_len = sa->auth->alg_trunc_len;
1656 memcpy ((
void *)key, (
void *)sa->auth->alg_key, ((sa->auth->alg_key_len + 7)/8));
1664 int xfrmnl_sa_set_auth_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int key_len,
unsigned int trunc_len,
char* key)
1666 uint32_t newlen =
sizeof (
struct xfrmnl_algo_auth) + (sizeof (uint8_t) * ((key_len + 7)/8));
1671 if ((sa->auth = calloc (1, newlen)) == NULL)
1675 strcpy (sa->auth->alg_name, alg_name);
1676 sa->auth->alg_key_len = key_len;
1677 sa->auth->alg_trunc_len = trunc_len;
1678 memcpy ((
void *)sa->auth->alg_key, (
void *)key, newlen);
1680 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
1685 int xfrmnl_sa_get_crypto_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
char* key)
1687 if (sa->ce_mask & XFRM_SA_ATTR_ALG_CRYPT)
1689 strcpy (alg_name, sa->crypt->alg_name);
1690 *key_len = sa->crypt->alg_key_len;
1691 memcpy ((
void *)key, (
void *)sa->crypt->alg_key, ((sa->crypt->alg_key_len + 7)/8));
1699 int xfrmnl_sa_set_crypto_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int key_len,
char* key)
1701 uint32_t newlen =
sizeof (
struct xfrmnl_algo) + (sizeof (uint8_t) * ((key_len + 7)/8));
1706 if ((sa->crypt = calloc (1, newlen)) == NULL)
1710 strcpy (sa->crypt->alg_name, alg_name);
1711 sa->crypt->alg_key_len = key_len;
1712 memcpy ((
void *)sa->crypt->alg_key, (
void *)key, newlen);
1714 sa->ce_mask |= XFRM_SA_ATTR_ALG_CRYPT;
1719 int xfrmnl_sa_get_comp_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
char* key)
1721 if (sa->ce_mask & XFRM_SA_ATTR_ALG_COMP)
1723 strcpy (alg_name, sa->comp->alg_name);
1724 *key_len = sa->comp->alg_key_len;
1725 memcpy ((
void *)key, (
void *)sa->comp->alg_key, ((sa->comp->alg_key_len + 7)/8));
1733 int xfrmnl_sa_set_comp_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int key_len,
char* key)
1735 uint32_t newlen =
sizeof (
struct xfrmnl_algo) + (sizeof (uint8_t) * ((key_len + 7)/8));
1740 if ((sa->comp = calloc (1, newlen)) == NULL)
1744 strcpy (sa->comp->alg_name, alg_name);
1745 sa->comp->alg_key_len = key_len;
1746 memcpy ((
void *)sa->comp->alg_key, (
void *)key, newlen);
1748 sa->ce_mask |= XFRM_SA_ATTR_ALG_COMP;
1753 int xfrmnl_sa_get_encap_tmpl (
struct xfrmnl_sa* sa,
unsigned int* encap_type,
unsigned int* encap_sport,
unsigned int* encap_dport,
struct nl_addr** encap_oa)
1755 if (sa->ce_mask & XFRM_SA_ATTR_ENCAP)
1757 *encap_type = sa->encap->encap_type;
1758 *encap_sport = sa->encap->encap_sport;
1759 *encap_dport = sa->encap->encap_dport;
1768 int xfrmnl_sa_set_encap_tmpl (
struct xfrmnl_sa* sa,
unsigned int encap_type,
unsigned int encap_sport,
unsigned int encap_dport,
struct nl_addr* encap_oa)
1771 if (sa->encap->encap_oa)
1775 sa->encap->encap_type = encap_type;
1776 sa->encap->encap_sport = encap_sport;
1777 sa->encap->encap_dport = encap_dport;
1779 sa->encap->encap_oa = encap_oa;
1781 sa->ce_mask |= XFRM_SA_ATTR_ENCAP;
1786 int xfrmnl_sa_get_tfcpad (
struct xfrmnl_sa* sa)
1788 if (sa->ce_mask & XFRM_SA_ATTR_TFCPAD)
1794 int xfrmnl_sa_set_tfcpad (
struct xfrmnl_sa* sa,
unsigned int tfcpad)
1796 sa->tfcpad = tfcpad;
1797 sa->ce_mask |= XFRM_SA_ATTR_TFCPAD;
1802 struct nl_addr* xfrmnl_sa_get_coaddr (
struct xfrmnl_sa* sa)
1804 if (sa->ce_mask & XFRM_SA_ATTR_COADDR)
1810 int xfrmnl_sa_set_coaddr (
struct xfrmnl_sa* sa,
struct nl_addr* coaddr)
1818 sa->coaddr = coaddr;
1820 sa->ce_mask |= XFRM_SA_ATTR_COADDR;
1825 int xfrmnl_sa_get_mark (
struct xfrmnl_sa* sa,
unsigned int* mark_mask,
unsigned int* mark_value)
1827 if (mark_mask == NULL || mark_value == NULL)
1830 if (sa->ce_mask & XFRM_SA_ATTR_MARK)
1832 *mark_mask = sa->mark.m;
1833 *mark_value = sa->mark.v;
1841 int xfrmnl_sa_set_mark (
struct xfrmnl_sa* sa,
unsigned int value,
unsigned int mask)
1845 sa->ce_mask |= XFRM_SA_ATTR_MARK;
1850 int xfrmnl_sa_get_sec_ctx (
struct xfrmnl_sa* sa,
unsigned int* doi,
unsigned int* alg,
unsigned int* len,
unsigned int* sid,
char* ctx_str)
1852 if (sa->ce_mask & XFRM_SA_ATTR_SECCTX)
1854 *doi = sa->sec_ctx->ctx_doi;
1855 *alg = sa->sec_ctx->ctx_alg;
1856 *len = sa->sec_ctx->ctx_len;
1857 *sid = sa->sec_ctx->ctx_sid;
1858 memcpy ((
void *)ctx_str, (
void *)sa->sec_ctx->ctx_str, sizeof (uint8_t) * sa->sec_ctx->ctx_len);
1866 int xfrmnl_sa_set_sec_ctx (
struct xfrmnl_sa* sa,
unsigned int doi,
unsigned int alg,
unsigned int len,
unsigned int sid,
char* ctx_str)
1871 if ((sa->sec_ctx = calloc (1,
sizeof (
struct xfrmnl_sec_ctx) + (
sizeof (uint8_t) * len))) == NULL)
1875 sa->sec_ctx->ctx_doi = doi;
1876 sa->sec_ctx->ctx_alg = alg;
1877 sa->sec_ctx->ctx_len = len;
1878 sa->sec_ctx->ctx_sid = sid;
1879 memcpy ((
void *)sa->sec_ctx->ctx_str, (
void *)ctx_str, sizeof (uint8_t) * len);
1881 sa->ce_mask |= XFRM_SA_ATTR_SECCTX;
1887 int xfrmnl_sa_get_replay_maxage (
struct xfrmnl_sa* sa)
1889 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_MAXAGE)
1890 return sa->replay_maxage;
1895 int xfrmnl_sa_set_replay_maxage (
struct xfrmnl_sa* sa,
unsigned int replay_maxage)
1897 sa->replay_maxage = replay_maxage;
1898 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXAGE;
1903 int xfrmnl_sa_get_replay_maxdiff (
struct xfrmnl_sa* sa)
1905 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_MAXDIFF)
1906 return sa->replay_maxdiff;
1911 int xfrmnl_sa_set_replay_maxdiff (
struct xfrmnl_sa* sa,
unsigned int replay_maxdiff)
1913 sa->replay_maxdiff = replay_maxdiff;
1914 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXDIFF;
1919 int xfrmnl_sa_get_replay_state (
struct xfrmnl_sa* sa,
unsigned int* oseq,
unsigned int* seq,
unsigned int* bmp)
1921 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
1923 if (sa->replay_state_esn == NULL)
1925 *oseq = sa->replay_state.oseq;
1926 *seq = sa->replay_state.seq;
1927 *bmp = sa->replay_state.bitmap;
1940 int xfrmnl_sa_set_replay_state (
struct xfrmnl_sa* sa,
unsigned int oseq,
unsigned int seq,
unsigned int bitmap)
1942 sa->replay_state.oseq = oseq;
1943 sa->replay_state.seq = seq;
1944 sa->replay_state.bitmap = bitmap;
1945 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
1950 int xfrmnl_sa_get_replay_state_esn (
struct xfrmnl_sa* sa,
unsigned int* oseq,
unsigned int* seq,
unsigned int* oseq_hi,
1951 unsigned int* seq_hi,
unsigned int* replay_window,
unsigned int* bmp_len,
unsigned int* bmp)
1953 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
1955 if (sa->replay_state_esn)
1957 *oseq = sa->replay_state_esn->oseq;
1958 *seq = sa->replay_state_esn->seq;
1959 *oseq_hi= sa->replay_state_esn->oseq_hi;
1960 *seq_hi = sa->replay_state_esn->seq_hi;
1961 *replay_window = sa->replay_state_esn->replay_window;
1962 *bmp_len = sa->replay_state_esn->bmp_len;
1963 memcpy (bmp, sa->replay_state_esn->bmp, sa->replay_state_esn->bmp_len * sizeof (uint32_t));
1976 int xfrmnl_sa_set_replay_state_esn (
struct xfrmnl_sa* sa,
unsigned int oseq,
unsigned int seq,
1977 unsigned int oseq_hi,
unsigned int seq_hi,
unsigned int replay_window,
1978 unsigned int bmp_len,
unsigned int* bmp)
1981 if (sa->replay_state_esn)
1982 free (sa->replay_state_esn);
1984 if ((sa->replay_state_esn = calloc (1,
sizeof (
struct xfrmnl_replay_state_esn) + (
sizeof (uint32_t) * bmp_len))) == NULL)
1986 sa->replay_state_esn->oseq = oseq;
1987 sa->replay_state_esn->seq = seq;
1988 sa->replay_state_esn->oseq_hi = oseq_hi;
1989 sa->replay_state_esn->seq_hi = seq_hi;
1990 sa->replay_state_esn->replay_window = replay_window;
1991 sa->replay_state_esn->bmp_len = bmp_len;
1992 memcpy (sa->replay_state_esn->bmp, bmp, bmp_len * sizeof (uint32_t));
1993 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
1999 int xfrmnl_sa_is_hardexpiry_reached (
struct xfrmnl_sa* sa)
2001 if (sa->ce_mask & XFRM_SA_ATTR_EXPIRE)
2002 return (sa->hard > 0 ? 1: 0);
2007 int xfrmnl_sa_is_expiry_reached (
struct xfrmnl_sa* sa)
2009 if (sa->ce_mask & XFRM_SA_ATTR_EXPIRE)
2017 static struct nl_object_ops xfrm_sa_obj_ops = {
2018 .oo_name =
"xfrm/sa",
2019 .oo_size =
sizeof(
struct xfrmnl_sa),
2020 .oo_constructor = xfrm_sa_alloc_data,
2021 .oo_free_data = xfrm_sa_free_data,
2022 .oo_clone = xfrm_sa_clone,
2028 .oo_compare = xfrm_sa_compare,
2029 .oo_attrs2str = xfrm_sa_attrs2str,
2030 .oo_id_attrs = (XFRM_SA_ATTR_DADDR | XFRM_SA_ATTR_SPI | XFRM_SA_ATTR_PROTO),
2033 static struct nl_af_group xfrm_sa_groups[] = {
2034 { AF_UNSPEC, XFRMNLGRP_SA },
2035 { AF_UNSPEC, XFRMNLGRP_EXPIRE },
2036 { END_OF_GROUP_LIST },
2039 static struct nl_cache_ops xfrmnl_sa_ops = {
2040 .co_name =
"xfrm/sa",
2041 .co_hdrsize =
sizeof(
struct xfrm_usersa_info),
2043 { XFRM_MSG_NEWSA, NL_ACT_NEW,
"new" },
2044 { XFRM_MSG_DELSA, NL_ACT_DEL,
"del" },
2045 { XFRM_MSG_GETSA, NL_ACT_GET,
"get" },
2046 { XFRM_MSG_EXPIRE, NL_ACT_UNSPEC,
"expire"},
2047 { XFRM_MSG_UPDSA, NL_ACT_NEW,
"update"},
2048 END_OF_MSGTYPES_LIST,
2050 .co_protocol = NETLINK_XFRM,
2051 .co_groups = xfrm_sa_groups,
2052 .co_request_update = xfrm_sa_request_update,
2053 .co_msg_parser = xfrm_sa_msg_parser,
2054 .co_obj_ops = &xfrm_sa_obj_ops,
2055 .co_include_event = &xfrm_sa_update_cache
2063 static void __attribute__ ((constructor)) xfrm_sa_init(
void)
2068 static void __attribute__ ((destructor)) xfrm_sa_exit(
void)
int nl_send_auto_complete(struct nl_sock *sk, struct nl_msg *msg)
struct nl_addr * nl_addr_clone(const struct nl_addr *addr)
Clone existing abstract address object.
Dump object briefly on one line.
void nl_addr_set_prefixlen(struct nl_addr *addr, int prefixlen)
Set the prefix length of an abstract address.
void nlmsg_free(struct nl_msg *msg)
Release a reference from an netlink message.
int nl_addr_cmp(const struct nl_addr *a, const struct nl_addr *b)
Compare abstract addresses.
void * nlmsg_data(const struct nlmsghdr *nlh)
Return pointer to message payload.
struct nl_object * nl_object_alloc(struct nl_object_ops *ops)
Allocate a new object of kind specified by the operations handle.
int nl_cache_mngt_unregister(struct nl_cache_ops *ops)
Unregister a set of cache operations.
Attribute validation policy.
void nl_object_get(struct nl_object *obj)
Acquire a reference on a object.
struct nl_addr * nl_addr_build(int family, const void *buf, size_t size)
Allocate abstract address based on a binary address.
int nl_pickup(struct nl_sock *sk, int(*parser)(struct nl_cache_ops *, struct sockaddr_nl *, struct nlmsghdr *, struct nl_parser_param *), struct nl_object **result)
Pickup netlink answer, parse is and return object.
int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen, struct nlattr *tb[], int maxtype, struct nla_policy *policy)
parse attributes of a netlink message
struct xfrmnl_ltime_cfg * xfrmnl_ltime_cfg_clone(struct xfrmnl_ltime_cfg *ltime)
Clone existing lifetime config object.
struct nlattr * nla_reserve(struct nl_msg *msg, int attrtype, int attrlen)
Reserve space for a attribute.
struct nl_addr * nl_addr_get(struct nl_addr *addr)
Increase the reference counter of an abstract address.
Dump all attributes but no statistics.
int nl_cache_mngt_register(struct nl_cache_ops *ops)
Register a set of cache operations.
struct nl_object * nl_cache_search(struct nl_cache *cache, struct nl_object *needle)
Search object in cache.
#define NLA_PUT(msg, attrtype, attrlen, data)
Add unspecific attribute to netlink message.
int nl_object_get_msgtype(const struct nl_object *obj)
Return the netlink message type the object was derived from.
void nl_cache_remove(struct nl_object *obj)
Remove object from cache.
void * nla_data(const struct nlattr *nla)
Return pointer to the payload section.
int xfrmnl_sel_cmp(struct xfrmnl_sel *a, struct xfrmnl_sel *b)
Compares two selector objects.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
uint16_t minlen
Minimal length of payload required.
int nl_send_simple(struct nl_sock *sk, int type, int flags, void *buf, size_t size)
Construct and transmit a Netlink message.
struct nl_object * nl_cache_get_next(struct nl_object *obj)
Return the next element in the cache.
int nlmsg_append(struct nl_msg *n, void *data, size_t len, int pad)
Append data to tail of a netlink message.
int nl_wait_for_ack(struct nl_sock *sk)
Wait for ACK.
void nl_object_put(struct nl_object *obj)
Release a reference from an object.
int nl_cache_move(struct nl_cache *cache, struct nl_object *obj)
Move object from one cache to another.
void nl_addr_put(struct nl_addr *addr)
Decrease the reference counter of an abstract address.
struct nl_msg * nlmsg_alloc_simple(int nlmsgtype, int flags)
Allocate a new netlink message.
struct xfrmnl_sel * xfrmnl_sel_alloc()
Allocate new selector object.
struct xfrmnl_sel * xfrmnl_sel_clone(struct xfrmnl_sel *sel)
Clone existing selector object.
struct xfrmnl_ltime_cfg * xfrmnl_ltime_cfg_alloc()
Allocate new lifetime config object.
int xfrmnl_ltime_cfg_cmp(struct xfrmnl_ltime_cfg *a, struct xfrmnl_ltime_cfg *b)
Compares two lifetime config objects.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
int nl_send_auto(struct nl_sock *sk, struct nl_msg *msg)
Finalize and transmit Netlink message.
unsigned int nl_addr_get_len(const struct nl_addr *addr)
Get length of binary address of abstract address object.
Dump all attributes including statistics.
struct nl_object * nl_cache_get_first(struct nl_cache *cache)
Return the first element in the cache.
void * nl_addr_get_binary_addr(const struct nl_addr *addr)
Get binary address of abstract address object.
int nl_cache_alloc_and_fill(struct nl_cache_ops *ops, struct nl_sock *sock, struct nl_cache **result)
Allocate new cache and fill it.
uint32_t nl_object_diff(struct nl_object *a, struct nl_object *b)
Compute bitmask representing difference in attribute values.
char * nl_addr2str(const struct nl_addr *addr, char *buf, size_t size)
Convert abstract address object to character string.
int nl_addr_get_family(const struct nl_addr *addr)
Return address family.