42 #include <netlink-private/netlink.h> 43 #include <netlink/netlink.h> 44 #include <netlink/cache.h> 45 #include <netlink/object.h> 46 #include <netlink/xfrm/sa.h> 47 #include <netlink/xfrm/selector.h> 48 #include <netlink/xfrm/lifetime.h> 51 #include "netlink-private/utils.h" 54 #define XFRM_SA_ATTR_SEL 0x01 55 #define XFRM_SA_ATTR_DADDR 0x02 56 #define XFRM_SA_ATTR_SPI 0x04 57 #define XFRM_SA_ATTR_PROTO 0x08 58 #define XFRM_SA_ATTR_SADDR 0x10 59 #define XFRM_SA_ATTR_LTIME_CFG 0x20 60 #define XFRM_SA_ATTR_LTIME_CUR 0x40 61 #define XFRM_SA_ATTR_STATS 0x80 62 #define XFRM_SA_ATTR_SEQ 0x100 63 #define XFRM_SA_ATTR_REQID 0x200 64 #define XFRM_SA_ATTR_FAMILY 0x400 65 #define XFRM_SA_ATTR_MODE 0x800 66 #define XFRM_SA_ATTR_REPLAY_WIN 0x1000 67 #define XFRM_SA_ATTR_FLAGS 0x2000 68 #define XFRM_SA_ATTR_ALG_AEAD 0x4000 69 #define XFRM_SA_ATTR_ALG_AUTH 0x8000 70 #define XFRM_SA_ATTR_ALG_CRYPT 0x10000 71 #define XFRM_SA_ATTR_ALG_COMP 0x20000 72 #define XFRM_SA_ATTR_ENCAP 0x40000 73 #define XFRM_SA_ATTR_TFCPAD 0x80000 74 #define XFRM_SA_ATTR_COADDR 0x100000 75 #define XFRM_SA_ATTR_MARK 0x200000 76 #define XFRM_SA_ATTR_SECCTX 0x400000 77 #define XFRM_SA_ATTR_REPLAY_MAXAGE 0x800000 78 #define XFRM_SA_ATTR_REPLAY_MAXDIFF 0x1000000 79 #define XFRM_SA_ATTR_REPLAY_STATE 0x2000000 80 #define XFRM_SA_ATTR_EXPIRE 0x4000000 82 static struct nl_cache_ops xfrmnl_sa_ops;
83 static struct nl_object_ops xfrm_sa_obj_ops;
86 static void xfrm_sa_alloc_data(
struct nl_object *c)
88 struct xfrmnl_sa* sa = nl_object_priv (c);
97 static void xfrm_sa_free_data(
struct nl_object *c)
99 struct xfrmnl_sa* sa = nl_object_priv (c);
104 xfrmnl_sel_put (sa->sel);
105 xfrmnl_ltime_cfg_put (sa->lft);
118 if (sa->encap->encap_oa)
126 if (sa->replay_state_esn)
127 free (sa->replay_state_esn);
130 static int xfrm_sa_clone(
struct nl_object *_dst,
struct nl_object *_src)
132 struct xfrmnl_sa* dst = nl_object_priv(_dst);
133 struct xfrmnl_sa* src = nl_object_priv(_src);
154 len =
sizeof (
struct xfrmnl_algo_aead) + ((src->aead->alg_key_len + 7) / 8);
155 if ((dst->aead = calloc (1, len)) == NULL)
157 memcpy ((
void *)dst->aead, (
void *)src->aead, len);
162 len =
sizeof (
struct xfrmnl_algo_auth) + ((src->auth->alg_key_len + 7) / 8);
163 if ((dst->auth = calloc (1, len)) == NULL)
165 memcpy ((
void *)dst->auth, (
void *)src->auth, len);
170 len =
sizeof (
struct xfrmnl_algo) + ((src->crypt->alg_key_len + 7) / 8);
171 if ((dst->crypt = calloc (1, len)) == NULL)
173 memcpy ((
void *)dst->crypt, (
void *)src->crypt, len);
178 len =
sizeof (
struct xfrmnl_algo) + ((src->comp->alg_key_len + 7) / 8);
179 if ((dst->comp = calloc (1, len)) == NULL)
181 memcpy ((
void *)dst->comp, (
void *)src->comp, len);
186 len =
sizeof (
struct xfrmnl_encap_tmpl);
187 if ((dst->encap = calloc (1, len)) == NULL)
189 memcpy ((
void *)dst->encap, (
void *)src->encap, len);
198 len =
sizeof (*src->sec_ctx) + src->sec_ctx->ctx_len;
199 if ((dst->sec_ctx = calloc (1, len)) == NULL)
201 memcpy ((
void *)dst->sec_ctx, (
void *)src->sec_ctx, len);
204 if (src->replay_state_esn)
206 len =
sizeof (
struct xfrmnl_replay_state_esn) + (src->replay_state_esn->bmp_len *
sizeof (uint32_t));
207 if ((dst->replay_state_esn = calloc (1, len)) == NULL)
209 memcpy ((
void *)dst->replay_state_esn, (
void *)src->replay_state_esn, len);
215 static uint64_t xfrm_sa_compare(
struct nl_object *_a,
struct nl_object *_b,
216 uint64_t attrs,
int flags)
218 struct xfrmnl_sa* a = (
struct xfrmnl_sa *) _a;
219 struct xfrmnl_sa* b = (
struct xfrmnl_sa *) _b;
223 #define XFRM_SA_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, XFRM_SA_ATTR_##ATTR, a, b, EXPR) 225 diff |= XFRM_SA_DIFF(DADDR,
nl_addr_cmp(a->id.daddr, b->id.daddr));
226 diff |= XFRM_SA_DIFF(SPI, a->id.spi != b->id.spi);
227 diff |= XFRM_SA_DIFF(PROTO, a->id.proto != b->id.proto);
228 diff |= XFRM_SA_DIFF(SADDR,
nl_addr_cmp(a->saddr, b->saddr));
230 diff |= XFRM_SA_DIFF(REQID, a->reqid != b->reqid);
231 diff |= XFRM_SA_DIFF(FAMILY,a->family != b->family);
232 diff |= XFRM_SA_DIFF(MODE,a->mode != b->mode);
233 diff |= XFRM_SA_DIFF(REPLAY_WIN,a->replay_window != b->replay_window);
234 diff |= XFRM_SA_DIFF(FLAGS,a->flags != b->flags);
235 diff |= XFRM_SA_DIFF(ALG_AEAD,(strcmp(a->aead->alg_name, b->aead->alg_name) ||
236 (a->aead->alg_key_len != b->aead->alg_key_len) ||
237 (a->aead->alg_icv_len != b->aead->alg_icv_len) ||
238 memcmp(a->aead->alg_key, b->aead->alg_key,
239 ((a->aead->alg_key_len + 7)/8))));
240 diff |= XFRM_SA_DIFF(ALG_AUTH,(strcmp(a->auth->alg_name, b->auth->alg_name) ||
241 (a->auth->alg_key_len != b->auth->alg_key_len) ||
242 (a->auth->alg_trunc_len != b->auth->alg_trunc_len) ||
243 memcmp(a->auth->alg_key, b->auth->alg_key,
244 ((a->auth->alg_key_len + 7)/8))));
245 diff |= XFRM_SA_DIFF(ALG_CRYPT,(strcmp(a->crypt->alg_name, b->crypt->alg_name) ||
246 (a->crypt->alg_key_len != b->crypt->alg_key_len) ||
247 memcmp(a->crypt->alg_key, b->crypt->alg_key,
248 ((a->crypt->alg_key_len + 7)/8))));
249 diff |= XFRM_SA_DIFF(ALG_COMP,(strcmp(a->comp->alg_name, b->comp->alg_name) ||
250 (a->comp->alg_key_len != b->comp->alg_key_len) ||
251 memcmp(a->comp->alg_key, b->comp->alg_key,
252 ((a->comp->alg_key_len + 7)/8))));
253 diff |= XFRM_SA_DIFF(ENCAP,((a->encap->encap_type != b->encap->encap_type) ||
254 (a->encap->encap_sport != b->encap->encap_sport) ||
255 (a->encap->encap_dport != b->encap->encap_dport) ||
256 nl_addr_cmp(a->encap->encap_oa, b->encap->encap_oa)));
257 diff |= XFRM_SA_DIFF(TFCPAD,a->tfcpad != b->tfcpad);
258 diff |= XFRM_SA_DIFF(COADDR,
nl_addr_cmp(a->coaddr, b->coaddr));
259 diff |= XFRM_SA_DIFF(MARK,(a->mark.m != b->mark.m) ||
260 (a->mark.v != b->mark.v));
261 diff |= XFRM_SA_DIFF(SECCTX,((a->sec_ctx->ctx_doi != b->sec_ctx->ctx_doi) ||
262 (a->sec_ctx->ctx_alg != b->sec_ctx->ctx_alg) ||
263 (a->sec_ctx->ctx_len != b->sec_ctx->ctx_len) ||
264 strcmp(a->sec_ctx->ctx, b->sec_ctx->ctx)));
265 diff |= XFRM_SA_DIFF(REPLAY_MAXAGE,a->replay_maxage != b->replay_maxage);
266 diff |= XFRM_SA_DIFF(REPLAY_MAXDIFF,a->replay_maxdiff != b->replay_maxdiff);
267 diff |= XFRM_SA_DIFF(EXPIRE,a->hard != b->hard);
270 found = AVAILABLE_MISMATCH (a, b, XFRM_SA_ATTR_REPLAY_STATE);
273 if (((a->replay_state_esn != NULL) && (b->replay_state_esn == NULL)) ||
274 ((a->replay_state_esn == NULL) && (b->replay_state_esn != NULL)))
279 if (a->replay_state_esn)
281 if (a->replay_state_esn->bmp_len != b->replay_state_esn->bmp_len)
285 uint32_t len =
sizeof (
struct xfrmnl_replay_state_esn) +
286 (a->replay_state_esn->bmp_len *
sizeof (uint32_t));
287 diff |= memcmp (a->replay_state_esn, b->replay_state_esn, len);
292 if ((a->replay_state.oseq != b->replay_state.oseq) ||
293 (a->replay_state.seq != b->replay_state.seq) ||
294 (a->replay_state.bitmap != b->replay_state.bitmap))
308 static const struct trans_tbl sa_attrs[] = {
309 __ADD(XFRM_SA_ATTR_SEL, selector),
310 __ADD(XFRM_SA_ATTR_DADDR, daddr),
311 __ADD(XFRM_SA_ATTR_SPI, spi),
312 __ADD(XFRM_SA_ATTR_PROTO, proto),
313 __ADD(XFRM_SA_ATTR_SADDR, saddr),
314 __ADD(XFRM_SA_ATTR_LTIME_CFG, lifetime_cfg),
315 __ADD(XFRM_SA_ATTR_LTIME_CUR, lifetime_cur),
316 __ADD(XFRM_SA_ATTR_STATS, stats),
317 __ADD(XFRM_SA_ATTR_SEQ, seqnum),
318 __ADD(XFRM_SA_ATTR_REQID, reqid),
319 __ADD(XFRM_SA_ATTR_FAMILY, family),
320 __ADD(XFRM_SA_ATTR_MODE, mode),
321 __ADD(XFRM_SA_ATTR_REPLAY_WIN, replay_window),
322 __ADD(XFRM_SA_ATTR_FLAGS, flags),
323 __ADD(XFRM_SA_ATTR_ALG_AEAD, alg_aead),
324 __ADD(XFRM_SA_ATTR_ALG_AUTH, alg_auth),
325 __ADD(XFRM_SA_ATTR_ALG_CRYPT, alg_crypto),
326 __ADD(XFRM_SA_ATTR_ALG_COMP, alg_comp),
327 __ADD(XFRM_SA_ATTR_ENCAP, encap),
328 __ADD(XFRM_SA_ATTR_TFCPAD, tfcpad),
329 __ADD(XFRM_SA_ATTR_COADDR, coaddr),
330 __ADD(XFRM_SA_ATTR_MARK, mark),
331 __ADD(XFRM_SA_ATTR_SECCTX, sec_ctx),
332 __ADD(XFRM_SA_ATTR_REPLAY_MAXAGE, replay_maxage),
333 __ADD(XFRM_SA_ATTR_REPLAY_MAXDIFF, replay_maxdiff),
334 __ADD(XFRM_SA_ATTR_REPLAY_STATE, replay_state),
335 __ADD(XFRM_SA_ATTR_EXPIRE, expire),
338 static char* xfrm_sa_attrs2str(
int attrs,
char *buf,
size_t len)
340 return __flags2str (attrs, buf, len, sa_attrs, ARRAY_SIZE(sa_attrs));
348 static const struct trans_tbl sa_flags[] = {
349 __ADD(XFRM_STATE_NOECN, no ecn),
350 __ADD(XFRM_STATE_DECAP_DSCP, decap dscp),
351 __ADD(XFRM_STATE_NOPMTUDISC, no pmtu discovery),
352 __ADD(XFRM_STATE_WILDRECV, wild receive),
353 __ADD(XFRM_STATE_ICMP, icmp),
354 __ADD(XFRM_STATE_AF_UNSPEC, unspecified),
355 __ADD(XFRM_STATE_ALIGN4, align4),
356 __ADD(XFRM_STATE_ESN, esn),
359 char* xfrmnl_sa_flags2str(
int flags,
char *buf,
size_t len)
361 return __flags2str (flags, buf, len, sa_flags, ARRAY_SIZE(sa_flags));
364 int xfrmnl_sa_str2flag(
const char *name)
366 return __str2flags (name, sa_flags, ARRAY_SIZE(sa_flags));
374 static const struct trans_tbl sa_modes[] = {
375 __ADD(XFRM_MODE_TRANSPORT, transport),
376 __ADD(XFRM_MODE_TUNNEL, tunnel),
377 __ADD(XFRM_MODE_ROUTEOPTIMIZATION, route optimization),
378 __ADD(XFRM_MODE_IN_TRIGGER, in trigger),
379 __ADD(XFRM_MODE_BEET, beet),
382 char* xfrmnl_sa_mode2str(
int mode,
char *buf,
size_t len)
384 return __type2str (mode, buf, len, sa_modes, ARRAY_SIZE(sa_modes));
387 int xfrmnl_sa_str2mode(
const char *name)
389 return __str2type (name, sa_modes, ARRAY_SIZE(sa_modes));
394 static void xfrm_sa_dump_line(
struct nl_object *a,
struct nl_dump_params *p)
396 char dst[INET6_ADDRSTRLEN+5], src[INET6_ADDRSTRLEN+5];
397 struct xfrmnl_sa* sa = (
struct xfrmnl_sa *) a;
398 char flags[128], mode[128];
399 time_t add_time, use_time;
400 struct tm *add_time_tm, *use_time_tm;
402 nl_dump_line(p,
"src %s dst %s family: %s\n",
nl_addr2str(sa->saddr, src,
sizeof(src)),
404 nl_af2str (sa->family, flags, sizeof (flags)));
406 nl_dump_line(p,
"\tproto %s spi 0x%x reqid %u\n",
407 nl_ip_proto2str (sa->id.proto, flags,
sizeof(flags)),
408 sa->id.spi, sa->reqid);
410 xfrmnl_sa_flags2str(sa->flags, flags, sizeof (flags));
411 xfrmnl_sa_mode2str(sa->mode, mode, sizeof (mode));
412 nl_dump_line(p,
"\tmode: %s flags: %s (0x%x) seq: %u replay window: %u\n",
413 mode, flags, sa->flags, sa->seq, sa->replay_window);
415 nl_dump_line(p,
"\tlifetime configuration: \n");
416 if (sa->lft->soft_byte_limit == XFRM_INF)
417 sprintf (flags,
"INF");
419 sprintf (flags,
"%" PRIu64, sa->lft->soft_byte_limit);
420 if (sa->lft->soft_packet_limit == XFRM_INF)
421 sprintf (mode,
"INF");
423 sprintf (mode,
"%" PRIu64, sa->lft->soft_packet_limit);
424 nl_dump_line(p,
"\t\tsoft limit: %s (bytes), %s (packets)\n", flags, mode);
425 if (sa->lft->hard_byte_limit == XFRM_INF)
426 sprintf (flags,
"INF");
428 sprintf (flags,
"%" PRIu64, sa->lft->hard_byte_limit);
429 if (sa->lft->hard_packet_limit == XFRM_INF)
430 sprintf (mode,
"INF");
432 sprintf (mode,
"%" PRIu64, sa->lft->hard_packet_limit);
433 nl_dump_line(p,
"\t\thard limit: %s (bytes), %s (packets)\n", flags, mode);
434 nl_dump_line(p,
"\t\tsoft add_time: %llu (seconds), soft use_time: %llu (seconds) \n",
435 sa->lft->soft_add_expires_seconds, sa->lft->soft_use_expires_seconds);
436 nl_dump_line(p,
"\t\thard add_time: %llu (seconds), hard use_time: %llu (seconds) \n",
437 sa->lft->hard_add_expires_seconds, sa->lft->hard_use_expires_seconds);
439 nl_dump_line(p,
"\tlifetime current: \n");
440 nl_dump_line(p,
"\t\t%llu bytes, %llu packets\n", sa->curlft.bytes, sa->curlft.packets);
441 if (sa->curlft.add_time != 0)
443 add_time = sa->curlft.add_time;
444 add_time_tm = gmtime (&add_time);
445 strftime (flags, 128,
"%Y-%m-%d %H-%M-%S", add_time_tm);
449 sprintf (flags,
"%s",
"-");
452 if (sa->curlft.use_time != 0)
454 use_time = sa->curlft.use_time;
455 use_time_tm = gmtime (&use_time);
456 strftime (mode, 128,
"%Y-%m-%d %H-%M-%S", use_time_tm);
460 sprintf (mode,
"%s",
"-");
462 nl_dump_line(p,
"\t\tadd_time: %s, use_time: %s\n", flags, mode);
466 nl_dump_line(p,
"\tAEAD Algo: \n");
467 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u ICV Len(bits): %u\n",
468 sa->aead->alg_name, sa->aead->alg_key_len, sa->aead->alg_icv_len);
473 nl_dump_line(p,
"\tAuth Algo: \n");
474 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u Trunc len(bits): %u\n",
475 sa->auth->alg_name, sa->auth->alg_key_len, sa->auth->alg_trunc_len);
480 nl_dump_line(p,
"\tEncryption Algo: \n");
481 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u\n",
482 sa->crypt->alg_name, sa->crypt->alg_key_len);
487 nl_dump_line(p,
"\tCompression Algo: \n");
488 nl_dump_line(p,
"\t\tName: %s Key len(bits): %u\n",
489 sa->comp->alg_name, sa->comp->alg_key_len);
494 nl_dump_line(p,
"\tEncapsulation template: \n");
495 nl_dump_line(p,
"\t\tType: %d Src port: %d Dst port: %d Encap addr: %s\n",
496 sa->encap->encap_type, sa->encap->encap_sport, sa->encap->encap_dport,
497 nl_addr2str (sa->encap->encap_oa, dst, sizeof (dst)));
500 if (sa->ce_mask & XFRM_SA_ATTR_TFCPAD)
501 nl_dump_line(p,
"\tTFC Pad: %u\n", sa->tfcpad);
503 if (sa->ce_mask & XFRM_SA_ATTR_COADDR)
504 nl_dump_line(p,
"\tCO Address: %s\n",
nl_addr2str (sa->coaddr, dst, sizeof (dst)));
506 if (sa->ce_mask & XFRM_SA_ATTR_MARK)
507 nl_dump_line(p,
"\tMark mask: 0x%x Mark value: 0x%x\n", sa->mark.m, sa->mark.v);
509 if (sa->ce_mask & XFRM_SA_ATTR_SECCTX)
510 nl_dump_line(p,
"\tDOI: %d Algo: %d Len: %u ctx: %s\n", sa->sec_ctx->ctx_doi,
511 sa->sec_ctx->ctx_alg, sa->sec_ctx->ctx_len, sa->sec_ctx->ctx);
513 nl_dump_line(p,
"\treplay info: \n");
514 nl_dump_line(p,
"\t\tmax age %u max diff %u \n", sa->replay_maxage, sa->replay_maxdiff);
516 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
518 nl_dump_line(p,
"\treplay state info: \n");
519 if (sa->replay_state_esn)
521 nl_dump_line(p,
"\t\toseq %u seq %u oseq_hi %u seq_hi %u replay window: %u \n",
522 sa->replay_state_esn->oseq, sa->replay_state_esn->seq,
523 sa->replay_state_esn->oseq_hi, sa->replay_state_esn->seq_hi,
524 sa->replay_state_esn->replay_window);
528 nl_dump_line(p,
"\t\toseq %u seq %u bitmap: %u \n", sa->replay_state.oseq,
529 sa->replay_state.seq, sa->replay_state.bitmap);
533 nl_dump_line(p,
"\tselector info: \n");
534 xfrmnl_sel_dump (sa->sel, p);
536 nl_dump_line(p,
"\tHard: %d\n", sa->hard);
541 static void xfrm_sa_dump_stats(
struct nl_object *a,
struct nl_dump_params *p)
543 struct xfrmnl_sa* sa = (
struct xfrmnl_sa*)a;
545 nl_dump_line(p,
"\tstats: \n");
546 nl_dump_line(p,
"\t\treplay window: %u replay: %u integrity failed: %u \n",
547 sa->stats.replay_window, sa->stats.replay, sa->stats.integrity_failed);
552 static void xfrm_sa_dump_details(
struct nl_object *a,
struct nl_dump_params *p)
554 xfrm_sa_dump_line(a, p);
555 xfrm_sa_dump_stats (a, p);
563 struct xfrmnl_sa* xfrmnl_sa_alloc(
void)
568 void xfrmnl_sa_put(
struct xfrmnl_sa* sa)
590 int xfrmnl_sa_alloc_cache(
struct nl_sock *sock,
struct nl_cache **result)
603 struct xfrmnl_sa* xfrmnl_sa_get(
struct nl_cache* cache,
struct nl_addr* daddr,
604 unsigned int spi,
unsigned int proto)
606 struct xfrmnl_sa *sa;
613 if (sa->id.proto == proto &&
630 static struct nla_policy xfrm_sa_policy[XFRMA_MAX+1] = {
631 [XFRMA_SA] = { .
minlen =
sizeof(
struct xfrm_usersa_info)},
632 [XFRMA_ALG_AUTH_TRUNC] = { .minlen =
sizeof(
struct xfrm_algo_auth)},
633 [XFRMA_ALG_AEAD] = { .minlen =
sizeof(
struct xfrm_algo_aead) },
634 [XFRMA_ALG_AUTH] = { .minlen =
sizeof(
struct xfrm_algo) },
635 [XFRMA_ALG_CRYPT] = { .minlen =
sizeof(
struct xfrm_algo) },
636 [XFRMA_ALG_COMP] = { .minlen =
sizeof(
struct xfrm_algo) },
637 [XFRMA_ENCAP] = { .minlen =
sizeof(
struct xfrm_encap_tmpl) },
638 [XFRMA_TMPL] = { .minlen =
sizeof(
struct xfrm_user_tmpl) },
639 [XFRMA_SEC_CTX] = { .minlen =
sizeof(
struct xfrm_sec_ctx) },
640 [XFRMA_LTIME_VAL] = { .minlen =
sizeof(
struct xfrm_lifetime_cur) },
641 [XFRMA_REPLAY_VAL] = { .minlen =
sizeof(
struct xfrm_replay_state) },
642 [XFRMA_REPLAY_THRESH] = { .type =
NLA_U32 },
643 [XFRMA_ETIMER_THRESH] = { .type =
NLA_U32 },
644 [XFRMA_SRCADDR] = { .minlen =
sizeof(xfrm_address_t) },
645 [XFRMA_COADDR] = { .minlen =
sizeof(xfrm_address_t) },
646 [XFRMA_MARK] = { .minlen =
sizeof(
struct xfrm_mark) },
647 [XFRMA_TFCPAD] = { .type =
NLA_U32 },
648 [XFRMA_REPLAY_ESN_VAL] = { .minlen =
sizeof(
struct xfrm_replay_state_esn) },
651 static int xfrm_sa_request_update(
struct nl_cache *c,
struct nl_sock *h)
653 struct xfrm_id sa_id;
655 memset (&sa_id, 0,
sizeof (sa_id));
657 &sa_id,
sizeof (sa_id));
660 int xfrmnl_sa_parse(
struct nlmsghdr *n,
struct xfrmnl_sa **result)
662 struct xfrmnl_sa* sa;
663 struct nlattr *tb[XFRMA_MAX + 1];
664 struct xfrm_usersa_info* sa_info;
665 struct xfrm_user_expire* ue;
667 struct nl_addr* addr;
669 sa = xfrmnl_sa_alloc();
675 sa->ce_msgtype = n->nlmsg_type;
676 if (n->nlmsg_type == XFRM_MSG_EXPIRE)
679 sa_info = &ue->state;
681 sa->ce_mask |= XFRM_SA_ATTR_EXPIRE;
683 else if (n->nlmsg_type == XFRM_MSG_DELSA)
685 sa_info = (
struct xfrm_usersa_info*)((
char *)
nlmsg_data(n) +
sizeof (
struct xfrm_usersa_id) + NLA_HDRLEN);
692 err =
nlmsg_parse(n,
sizeof(
struct xfrm_usersa_info), tb, XFRMA_MAX, xfrm_sa_policy);
696 if (sa_info->sel.family == AF_INET)
697 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.daddr.a4, sizeof (sa_info->sel.daddr.a4));
699 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.daddr.a6, sizeof (sa_info->sel.daddr.a6));
701 xfrmnl_sel_set_daddr (sa->sel, addr);
702 xfrmnl_sel_set_prefixlen_d (sa->sel, sa_info->sel.prefixlen_d);
704 if (sa_info->sel.family == AF_INET)
705 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.saddr.a4, sizeof (sa_info->sel.saddr.a4));
707 addr =
nl_addr_build (sa_info->sel.family, &sa_info->sel.saddr.a6, sizeof (sa_info->sel.saddr.a6));
709 xfrmnl_sel_set_saddr (sa->sel, addr);
710 xfrmnl_sel_set_prefixlen_s (sa->sel, sa_info->sel.prefixlen_s);
712 xfrmnl_sel_set_dport (sa->sel, ntohs(sa_info->sel.dport));
713 xfrmnl_sel_set_dportmask (sa->sel, ntohs(sa_info->sel.dport_mask));
714 xfrmnl_sel_set_sport (sa->sel, ntohs(sa_info->sel.sport));
715 xfrmnl_sel_set_sportmask (sa->sel, ntohs(sa_info->sel.sport_mask));
716 xfrmnl_sel_set_family (sa->sel, sa_info->sel.family);
717 xfrmnl_sel_set_proto (sa->sel, sa_info->sel.proto);
718 xfrmnl_sel_set_ifindex (sa->sel, sa_info->sel.ifindex);
719 xfrmnl_sel_set_userid (sa->sel, sa_info->sel.user);
720 sa->ce_mask |= XFRM_SA_ATTR_SEL;
722 if (sa_info->family == AF_INET)
723 sa->id.daddr =
nl_addr_build (sa_info->family, &sa_info->id.daddr.a4, sizeof (sa_info->id.daddr.a4));
725 sa->id.daddr =
nl_addr_build (sa_info->family, &sa_info->id.daddr.a6, sizeof (sa_info->id.daddr.a6));
726 sa->id.spi = ntohl(sa_info->id.spi);
727 sa->id.proto = sa_info->id.proto;
728 sa->ce_mask |= (XFRM_SA_ATTR_DADDR | XFRM_SA_ATTR_SPI | XFRM_SA_ATTR_PROTO);
730 if (sa_info->family == AF_INET)
731 sa->saddr =
nl_addr_build (sa_info->family, &sa_info->saddr.a4, sizeof (sa_info->saddr.a4));
733 sa->saddr =
nl_addr_build (sa_info->family, &sa_info->saddr.a6, sizeof (sa_info->saddr.a6));
734 sa->ce_mask |= XFRM_SA_ATTR_SADDR;
736 sa->lft->soft_byte_limit = sa_info->lft.soft_byte_limit;
737 sa->lft->hard_byte_limit = sa_info->lft.hard_byte_limit;
738 sa->lft->soft_packet_limit = sa_info->lft.soft_packet_limit;
739 sa->lft->hard_packet_limit = sa_info->lft.hard_packet_limit;
740 sa->lft->soft_add_expires_seconds = sa_info->lft.soft_add_expires_seconds;
741 sa->lft->hard_add_expires_seconds = sa_info->lft.hard_add_expires_seconds;
742 sa->lft->soft_use_expires_seconds = sa_info->lft.soft_use_expires_seconds;
743 sa->lft->hard_use_expires_seconds = sa_info->lft.hard_use_expires_seconds;
744 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CFG;
746 sa->curlft.bytes = sa_info->curlft.bytes;
747 sa->curlft.packets = sa_info->curlft.packets;
748 sa->curlft.add_time = sa_info->curlft.add_time;
749 sa->curlft.use_time = sa_info->curlft.use_time;
750 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CUR;
752 sa->stats.replay_window = sa_info->stats.replay_window;
753 sa->stats.replay = sa_info->stats.replay;
754 sa->stats.integrity_failed = sa_info->stats.integrity_failed;
755 sa->ce_mask |= XFRM_SA_ATTR_STATS;
757 sa->seq = sa_info->seq;
758 sa->reqid = sa_info->reqid;
759 sa->family = sa_info->family;
760 sa->mode = sa_info->mode;
761 sa->replay_window = sa_info->replay_window;
762 sa->flags = sa_info->flags;
763 sa->ce_mask |= (XFRM_SA_ATTR_SEQ | XFRM_SA_ATTR_REQID |
764 XFRM_SA_ATTR_FAMILY | XFRM_SA_ATTR_MODE |
765 XFRM_SA_ATTR_REPLAY_WIN | XFRM_SA_ATTR_FLAGS);
767 if (tb[XFRMA_ALG_AEAD]) {
768 struct xfrm_algo_aead* aead =
nla_data(tb[XFRMA_ALG_AEAD]);
769 len =
sizeof (
struct xfrmnl_algo_aead) + ((aead->alg_key_len + 7) / 8);
770 if ((sa->aead = calloc (1, len)) == NULL)
775 memcpy ((
void *)sa->aead, (
void *)aead, len);
776 sa->ce_mask |= XFRM_SA_ATTR_ALG_AEAD;
779 if (tb[XFRMA_ALG_AUTH_TRUNC]) {
780 struct xfrm_algo_auth* auth =
nla_data(tb[XFRMA_ALG_AUTH_TRUNC]);
781 len =
sizeof (
struct xfrmnl_algo_auth) + ((auth->alg_key_len + 7) / 8);
782 if ((sa->auth = calloc (1, len)) == NULL)
787 memcpy ((
void *)sa->auth, (
void *)auth, len);
788 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
791 if (tb[XFRMA_ALG_AUTH] && !sa->auth) {
792 struct xfrm_algo* auth =
nla_data(tb[XFRMA_ALG_AUTH]);
793 len =
sizeof (
struct xfrmnl_algo_auth) + ((auth->alg_key_len + 7) / 8);
794 if ((sa->auth = calloc (1, len)) == NULL)
799 strcpy(sa->auth->alg_name, auth->alg_name);
800 memcpy(sa->auth->alg_key, auth->alg_key, (auth->alg_key_len + 7) / 8);
801 sa->auth->alg_key_len = auth->alg_key_len;
802 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
805 if (tb[XFRMA_ALG_CRYPT]) {
806 struct xfrm_algo* crypt =
nla_data(tb[XFRMA_ALG_CRYPT]);
807 len =
sizeof (
struct xfrmnl_algo) + ((crypt->alg_key_len + 7) / 8);
808 if ((sa->crypt = calloc (1, len)) == NULL)
813 memcpy ((
void *)sa->crypt, (
void *)crypt, len);
814 sa->ce_mask |= XFRM_SA_ATTR_ALG_CRYPT;
817 if (tb[XFRMA_ALG_COMP]) {
818 struct xfrm_algo* comp =
nla_data(tb[XFRMA_ALG_COMP]);
819 len =
sizeof (
struct xfrmnl_algo) + ((comp->alg_key_len + 7) / 8);
820 if ((sa->comp = calloc (1, len)) == NULL)
825 memcpy ((
void *)sa->comp, (
void *)comp, len);
826 sa->ce_mask |= XFRM_SA_ATTR_ALG_COMP;
829 if (tb[XFRMA_ENCAP]) {
830 struct xfrm_encap_tmpl* encap =
nla_data(tb[XFRMA_ENCAP]);
831 len =
sizeof (
struct xfrmnl_encap_tmpl);
832 if ((sa->encap = calloc (1, len)) == NULL)
837 sa->encap->encap_type = encap->encap_type;
838 sa->encap->encap_sport = ntohs(encap->encap_sport);
839 sa->encap->encap_dport = ntohs(encap->encap_dport);
840 if (sa_info->family == AF_INET)
841 sa->encap->encap_oa =
nl_addr_build (sa_info->family, &encap->encap_oa.a4, sizeof (encap->encap_oa.a4));
843 sa->encap->encap_oa =
nl_addr_build (sa_info->family, &encap->encap_oa.a6, sizeof (encap->encap_oa.a6));
844 sa->ce_mask |= XFRM_SA_ATTR_ENCAP;
847 if (tb[XFRMA_TFCPAD]) {
848 sa->tfcpad = *(uint32_t*)
nla_data(tb[XFRMA_TFCPAD]);
849 sa->ce_mask |= XFRM_SA_ATTR_TFCPAD;
852 if (tb[XFRMA_COADDR]) {
853 if (sa_info->family == AF_INET)
861 sizeof (uint32_t) * 4);
863 sa->ce_mask |= XFRM_SA_ATTR_COADDR;
866 if (tb[XFRMA_MARK]) {
867 struct xfrm_mark* m =
nla_data(tb[XFRMA_MARK]);
870 sa->ce_mask |= XFRM_SA_ATTR_MARK;
873 if (tb[XFRMA_SEC_CTX]) {
874 struct xfrm_user_sec_ctx* sec_ctx =
nla_data(tb[XFRMA_SEC_CTX]);
875 len =
sizeof (
struct xfrmnl_user_sec_ctx) + sec_ctx->ctx_len;
876 if ((sa->sec_ctx = calloc (1, len)) == NULL)
881 memcpy (sa->sec_ctx, sec_ctx, len);
882 sa->ce_mask |= XFRM_SA_ATTR_SECCTX;
885 if (tb[XFRMA_ETIMER_THRESH]) {
886 sa->replay_maxage = *(uint32_t*)
nla_data(tb[XFRMA_ETIMER_THRESH]);
887 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXAGE;
890 if (tb[XFRMA_REPLAY_THRESH]) {
891 sa->replay_maxdiff = *(uint32_t*)
nla_data(tb[XFRMA_REPLAY_THRESH]);
892 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXDIFF;
895 if (tb[XFRMA_REPLAY_ESN_VAL]) {
896 struct xfrm_replay_state_esn* esn =
nla_data (tb[XFRMA_REPLAY_ESN_VAL]);
897 len =
sizeof (
struct xfrmnl_replay_state_esn) + (sizeof (uint32_t) * esn->bmp_len);
898 if ((sa->replay_state_esn = calloc (1, len)) == NULL)
903 memcpy ((
void *)sa->replay_state_esn, (
void *)esn, len);
904 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
906 else if (tb[XFRMA_REPLAY_VAL])
908 struct xfrm_replay_state* replay_state =
nla_data (tb[XFRMA_REPLAY_VAL]);
909 sa->replay_state.oseq = replay_state->oseq;
910 sa->replay_state.seq = replay_state->seq;
911 sa->replay_state.bitmap = replay_state->bitmap;
912 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
913 sa->replay_state_esn = NULL;
924 static int xfrm_sa_update_cache (
struct nl_cache *cache,
struct nl_object *obj,
925 change_func_t change_cb, change_func_v2_t change_cb_v2,
928 struct nl_object* old_sa;
929 struct xfrmnl_sa* sa = (
struct xfrmnl_sa*)obj;
960 change_cb_v2(cache, NULL, obj, 0, NL_ACT_NEW, data);
962 change_cb(cache, obj, NL_ACT_NEW, data);
967 if (change_cb || change_cb_v2)
974 change_cb_v2(cache, old_sa, obj, diff, NL_ACT_CHANGE, data);
975 }
else if (change_cb)
976 change_cb(cache, obj, NL_ACT_CHANGE, data);
986 change_cb_v2(cache, obj, NULL, 0, NL_ACT_DEL, data);
988 change_cb (cache, obj, NL_ACT_DEL, data);
1000 return nl_cache_include_v2(cache, obj, change_cb_v2, data);
1002 return nl_cache_include (cache, obj, change_cb, data);
1006 static int xfrm_sa_msg_parser(
struct nl_cache_ops *ops,
struct sockaddr_nl *who,
1007 struct nlmsghdr *n,
struct nl_parser_param *pp)
1009 struct xfrmnl_sa* sa;
1012 if ((err = xfrmnl_sa_parse(n, &sa)) < 0)
1015 err = pp->pp_cb((
struct nl_object *) sa, pp);
1026 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)
1029 struct xfrm_usersa_id sa_id;
1030 struct xfrm_mark mark;
1034 fprintf(stderr,
"APPLICATION BUG: %s:%d:%s: A valid destination address, spi must be specified\n",
1035 __FILE__, __LINE__, __func__);
1037 return -NLE_MISSING_ATTR;
1040 memset(&sa_id, 0,
sizeof(sa_id));
1043 sa_id.spi = htonl(spi);
1044 sa_id.proto = protocol;
1049 if (
nlmsg_append(msg, &sa_id,
sizeof(sa_id), NLMSG_ALIGNTO) < 0)
1050 goto nla_put_failure;
1052 if ((mark_m & mark_v) != 0)
1054 memset(&mark, 0,
sizeof(
struct xfrm_mark));
1058 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &mark);
1066 return -NLE_MSGSIZE;
1069 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)
1071 struct nl_msg *msg = NULL;
1072 struct nl_object *obj;
1075 if ((err = xfrmnl_sa_build_get_request(daddr, spi, protocol, mark_m, mark_v, &msg)) < 0)
1083 if ((err =
nl_pickup(sock, &xfrm_sa_msg_parser, &obj)) < 0)
1087 *result = (
struct xfrmnl_sa *) obj;
1090 if (err == 0 && obj)
1098 static int build_xfrm_sa_message(
struct xfrmnl_sa *tmpl,
int cmd,
int flags,
struct nl_msg **result)
1101 struct xfrm_usersa_info sa_info;
1103 struct nl_addr* addr;
1105 if (!(tmpl->ce_mask & XFRM_SA_ATTR_DADDR) ||
1106 !(tmpl->ce_mask & XFRM_SA_ATTR_SPI) ||
1107 !(tmpl->ce_mask & XFRM_SA_ATTR_PROTO))
1108 return -NLE_MISSING_ATTR;
1110 memset ((
void*)&sa_info, 0,
sizeof (sa_info));
1111 if (tmpl->ce_mask & XFRM_SA_ATTR_SEL)
1113 addr = xfrmnl_sel_get_daddr (tmpl->sel);
1115 addr = xfrmnl_sel_get_saddr (tmpl->sel);
1117 sa_info.sel.dport = htons (xfrmnl_sel_get_dport (tmpl->sel));
1118 sa_info.sel.dport_mask = htons (xfrmnl_sel_get_dportmask (tmpl->sel));
1119 sa_info.sel.sport = htons (xfrmnl_sel_get_sport (tmpl->sel));
1120 sa_info.sel.sport_mask = htons (xfrmnl_sel_get_sportmask (tmpl->sel));
1121 sa_info.sel.family = xfrmnl_sel_get_family (tmpl->sel);
1122 sa_info.sel.prefixlen_d = xfrmnl_sel_get_prefixlen_d (tmpl->sel);
1123 sa_info.sel.prefixlen_s = xfrmnl_sel_get_prefixlen_s (tmpl->sel);
1124 sa_info.sel.proto = xfrmnl_sel_get_proto (tmpl->sel);
1125 sa_info.sel.ifindex = xfrmnl_sel_get_ifindex (tmpl->sel);
1126 sa_info.sel.user = xfrmnl_sel_get_userid (tmpl->sel);
1130 sa_info.id.spi = htonl(tmpl->id.spi);
1131 sa_info.id.proto = tmpl->id.proto;
1133 if (tmpl->ce_mask & XFRM_SA_ATTR_SADDR)
1136 if (tmpl->ce_mask & XFRM_SA_ATTR_LTIME_CFG)
1138 sa_info.lft.soft_byte_limit = xfrmnl_ltime_cfg_get_soft_bytelimit (tmpl->lft);
1139 sa_info.lft.hard_byte_limit = xfrmnl_ltime_cfg_get_hard_bytelimit (tmpl->lft);
1140 sa_info.lft.soft_packet_limit = xfrmnl_ltime_cfg_get_soft_packetlimit (tmpl->lft);
1141 sa_info.lft.hard_packet_limit = xfrmnl_ltime_cfg_get_hard_packetlimit (tmpl->lft);
1142 sa_info.lft.soft_add_expires_seconds = xfrmnl_ltime_cfg_get_soft_addexpires (tmpl->lft);
1143 sa_info.lft.hard_add_expires_seconds = xfrmnl_ltime_cfg_get_hard_addexpires (tmpl->lft);
1144 sa_info.lft.soft_use_expires_seconds = xfrmnl_ltime_cfg_get_soft_useexpires (tmpl->lft);
1145 sa_info.lft.hard_use_expires_seconds = xfrmnl_ltime_cfg_get_hard_useexpires (tmpl->lft);
1152 if (tmpl->ce_mask & XFRM_SA_ATTR_REQID)
1153 sa_info.reqid = tmpl->reqid;
1155 if (tmpl->ce_mask & XFRM_SA_ATTR_FAMILY)
1156 sa_info.family = tmpl->family;
1158 if (tmpl->ce_mask & XFRM_SA_ATTR_MODE)
1159 sa_info.mode = tmpl->mode;
1161 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_WIN)
1162 sa_info.replay_window = tmpl->replay_window;
1164 if (tmpl->ce_mask & XFRM_SA_ATTR_FLAGS)
1165 sa_info.flags = tmpl->flags;
1171 if (
nlmsg_append(msg, &sa_info,
sizeof(sa_info), NLMSG_ALIGNTO) < 0)
1172 goto nla_put_failure;
1174 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_AEAD) {
1175 len =
sizeof (
struct xfrm_algo_aead) + ((tmpl->aead->alg_key_len + 7) / 8);
1176 NLA_PUT (msg, XFRMA_ALG_AEAD, len, tmpl->aead);
1179 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_AUTH) {
1182 if (tmpl->auth->alg_trunc_len) {
1183 len =
sizeof (
struct xfrm_algo_auth) + ((tmpl->auth->alg_key_len + 7) / 8);
1184 NLA_PUT (msg, XFRMA_ALG_AUTH_TRUNC, len, tmpl->auth);
1186 struct xfrm_algo *auth;
1188 len =
sizeof (
struct xfrm_algo) + ((tmpl->auth->alg_key_len + 7) / 8);
1195 strncpy(auth->alg_name, tmpl->auth->alg_name,
sizeof(auth->alg_name));
1196 auth->alg_name[
sizeof(auth->alg_name) - 1] =
'\0';
1197 auth->alg_key_len = tmpl->auth->alg_key_len;
1198 memcpy(auth->alg_key, tmpl->auth->alg_key, (tmpl->auth->alg_key_len + 7) / 8);
1199 if (
nla_put(msg, XFRMA_ALG_AUTH, len, auth) < 0) {
1201 goto nla_put_failure;
1207 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_CRYPT) {
1208 len =
sizeof (
struct xfrm_algo) + ((tmpl->crypt->alg_key_len + 7) / 8);
1209 NLA_PUT (msg, XFRMA_ALG_CRYPT, len, tmpl->crypt);
1212 if (tmpl->ce_mask & XFRM_SA_ATTR_ALG_COMP) {
1213 len =
sizeof (
struct xfrm_algo) + ((tmpl->comp->alg_key_len + 7) / 8);
1214 NLA_PUT (msg, XFRMA_ALG_COMP, len, tmpl->comp);
1217 if (tmpl->ce_mask & XFRM_SA_ATTR_ENCAP) {
1218 struct xfrm_encap_tmpl* encap_tmpl;
1219 struct nlattr* encap_attr;
1221 len =
sizeof (
struct xfrm_encap_tmpl);
1224 goto nla_put_failure;
1225 encap_tmpl =
nla_data (encap_attr);
1226 encap_tmpl->encap_type = tmpl->encap->encap_type;
1227 encap_tmpl->encap_sport = htons (tmpl->encap->encap_sport);
1228 encap_tmpl->encap_dport = htons (tmpl->encap->encap_dport);
1232 if (tmpl->ce_mask & XFRM_SA_ATTR_TFCPAD) {
1236 if (tmpl->ce_mask & XFRM_SA_ATTR_COADDR) {
1237 NLA_PUT (msg, XFRMA_COADDR,
sizeof (xfrm_address_t), tmpl->coaddr);
1240 if (tmpl->ce_mask & XFRM_SA_ATTR_MARK) {
1241 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &tmpl->mark);
1244 if (tmpl->ce_mask & XFRM_SA_ATTR_SECCTX) {
1245 len =
sizeof (
struct xfrm_sec_ctx) + tmpl->sec_ctx->ctx_len;
1246 NLA_PUT (msg, XFRMA_SEC_CTX, len, tmpl->sec_ctx);
1249 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_MAXAGE) {
1250 NLA_PUT_U32 (msg, XFRMA_ETIMER_THRESH, tmpl->replay_maxage);
1253 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_MAXDIFF) {
1254 NLA_PUT_U32 (msg, XFRMA_REPLAY_THRESH, tmpl->replay_maxdiff);
1257 if (tmpl->ce_mask & XFRM_SA_ATTR_REPLAY_STATE) {
1258 if (tmpl->replay_state_esn) {
1259 len =
sizeof (
struct xfrm_replay_state_esn) + (sizeof (uint32_t) * tmpl->replay_state_esn->bmp_len);
1260 NLA_PUT (msg, XFRMA_REPLAY_ESN_VAL, len, tmpl->replay_state_esn);
1263 NLA_PUT (msg, XFRMA_REPLAY_VAL,
sizeof (
struct xfrm_replay_state), &tmpl->replay_state);
1272 return -NLE_MSGSIZE;
1280 int xfrmnl_sa_build_add_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1282 return build_xfrm_sa_message (tmpl, XFRM_MSG_NEWSA, flags, result);
1285 int xfrmnl_sa_add(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1290 if ((err = xfrmnl_sa_build_add_request(tmpl, flags, &msg)) < 0)
1306 int xfrmnl_sa_build_update_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1308 return build_xfrm_sa_message (tmpl, XFRM_MSG_UPDSA, flags, result);
1311 int xfrmnl_sa_update(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1316 if ((err = xfrmnl_sa_build_update_request(tmpl, flags, &msg)) < 0)
1329 static int build_xfrm_sa_delete_message(
struct xfrmnl_sa *tmpl,
int cmd,
int flags,
struct nl_msg **result)
1332 struct xfrm_usersa_id sa_id;
1334 if (!(tmpl->ce_mask & XFRM_SA_ATTR_DADDR) ||
1335 !(tmpl->ce_mask & XFRM_SA_ATTR_SPI) ||
1336 !(tmpl->ce_mask & XFRM_SA_ATTR_PROTO))
1337 return -NLE_MISSING_ATTR;
1342 sa_id.spi = htonl(tmpl->id.spi);
1343 sa_id.proto = tmpl->id.proto;
1349 if (
nlmsg_append(msg, &sa_id,
sizeof(sa_id), NLMSG_ALIGNTO) < 0)
1350 goto nla_put_failure;
1352 if (tmpl->ce_mask & XFRM_SA_ATTR_MARK) {
1353 NLA_PUT (msg, XFRMA_MARK,
sizeof (
struct xfrm_mark), &tmpl->mark);
1361 return -NLE_MSGSIZE;
1369 int xfrmnl_sa_build_delete_request(
struct xfrmnl_sa* tmpl,
int flags,
struct nl_msg **result)
1371 return build_xfrm_sa_delete_message (tmpl, XFRM_MSG_DELSA, flags, result);
1374 int xfrmnl_sa_delete(
struct nl_sock* sk,
struct xfrmnl_sa* tmpl,
int flags)
1379 if ((err = xfrmnl_sa_build_delete_request(tmpl, flags, &msg)) < 0)
1398 struct xfrmnl_sel* xfrmnl_sa_get_sel (
struct xfrmnl_sa* sa)
1400 if (sa->ce_mask & XFRM_SA_ATTR_SEL)
1406 int xfrmnl_sa_set_sel (
struct xfrmnl_sa* sa,
struct xfrmnl_sel* sel)
1410 xfrmnl_sel_put (sa->sel);
1413 xfrmnl_sel_get (sel);
1415 sa->ce_mask |= XFRM_SA_ATTR_SEL;
1420 static inline int __assign_addr(
struct xfrmnl_sa* sa,
struct nl_addr **pos,
1421 struct nl_addr *
new,
int flag,
int nocheck)
1425 if (sa->ce_mask & XFRM_SA_ATTR_FAMILY)
1428 return -NLE_AF_MISMATCH;
1438 sa->ce_mask |= flag;
1444 struct nl_addr* xfrmnl_sa_get_daddr (
struct xfrmnl_sa* sa)
1446 if (sa->ce_mask & XFRM_SA_ATTR_DADDR)
1447 return sa->id.daddr;
1452 int xfrmnl_sa_set_daddr (
struct xfrmnl_sa* sa,
struct nl_addr* addr)
1454 return __assign_addr(sa, &sa->id.daddr, addr, XFRM_SA_ATTR_DADDR, 0);
1457 int xfrmnl_sa_get_spi (
struct xfrmnl_sa* sa)
1459 if (sa->ce_mask & XFRM_SA_ATTR_SPI)
1465 int xfrmnl_sa_set_spi (
struct xfrmnl_sa* sa,
unsigned int spi)
1468 sa->ce_mask |= XFRM_SA_ATTR_SPI;
1473 int xfrmnl_sa_get_proto (
struct xfrmnl_sa* sa)
1475 if (sa->ce_mask & XFRM_SA_ATTR_PROTO)
1476 return sa->id.proto;
1481 int xfrmnl_sa_set_proto (
struct xfrmnl_sa* sa,
unsigned int protocol)
1483 sa->id.proto = protocol;
1484 sa->ce_mask |= XFRM_SA_ATTR_PROTO;
1489 struct nl_addr* xfrmnl_sa_get_saddr (
struct xfrmnl_sa* sa)
1491 if (sa->ce_mask & XFRM_SA_ATTR_SADDR)
1497 int xfrmnl_sa_set_saddr (
struct xfrmnl_sa* sa,
struct nl_addr* addr)
1499 return __assign_addr(sa, &sa->saddr, addr, XFRM_SA_ATTR_SADDR, 1);
1502 struct xfrmnl_ltime_cfg* xfrmnl_sa_get_lifetime_cfg (
struct xfrmnl_sa* sa)
1504 if (sa->ce_mask & XFRM_SA_ATTR_LTIME_CFG)
1510 int xfrmnl_sa_set_lifetime_cfg (
struct xfrmnl_sa* sa,
struct xfrmnl_ltime_cfg* ltime)
1514 xfrmnl_ltime_cfg_put (sa->lft);
1517 xfrmnl_ltime_cfg_get (ltime);
1519 sa->ce_mask |= XFRM_SA_ATTR_LTIME_CFG;
1524 int xfrmnl_sa_get_curlifetime (
struct xfrmnl_sa* sa,
unsigned long long int* curr_bytes,
1525 unsigned long long int* curr_packets,
unsigned long long int* curr_add_time,
unsigned long long int* curr_use_time)
1527 if (sa == NULL || curr_bytes == NULL || curr_packets == NULL || curr_add_time == NULL || curr_use_time == NULL)
1530 if (sa->ce_mask & XFRM_SA_ATTR_LTIME_CUR)
1532 *curr_bytes = sa->curlft.bytes;
1533 *curr_packets = sa->curlft.packets;
1534 *curr_add_time = sa->curlft.add_time;
1535 *curr_use_time = sa->curlft.use_time;
1543 int xfrmnl_sa_get_stats (
struct xfrmnl_sa* sa,
unsigned long long int* replay_window,
1544 unsigned long long int* replay,
unsigned long long int* integrity_failed)
1546 if (sa == NULL || replay_window == NULL || replay == NULL || integrity_failed == NULL)
1549 if (sa->ce_mask & XFRM_SA_ATTR_STATS)
1551 *replay_window = sa->stats.replay_window;
1552 *replay = sa->stats.replay;
1553 *integrity_failed = sa->stats.integrity_failed;
1561 int xfrmnl_sa_get_seq (
struct xfrmnl_sa* sa)
1563 if (sa->ce_mask & XFRM_SA_ATTR_SEQ)
1569 int xfrmnl_sa_get_reqid (
struct xfrmnl_sa* sa)
1571 if (sa->ce_mask & XFRM_SA_ATTR_REQID)
1577 int xfrmnl_sa_set_reqid (
struct xfrmnl_sa* sa,
unsigned int reqid)
1580 sa->ce_mask |= XFRM_SA_ATTR_REQID;
1585 int xfrmnl_sa_get_family (
struct xfrmnl_sa* sa)
1587 if (sa->ce_mask & XFRM_SA_ATTR_FAMILY)
1593 int xfrmnl_sa_set_family (
struct xfrmnl_sa* sa,
unsigned int family)
1595 sa->family = family;
1596 sa->ce_mask |= XFRM_SA_ATTR_FAMILY;
1601 int xfrmnl_sa_get_mode (
struct xfrmnl_sa* sa)
1603 if (sa->ce_mask & XFRM_SA_ATTR_MODE)
1609 int xfrmnl_sa_set_mode (
struct xfrmnl_sa* sa,
unsigned int mode)
1612 sa->ce_mask |= XFRM_SA_ATTR_MODE;
1617 int xfrmnl_sa_get_replay_window (
struct xfrmnl_sa* sa)
1619 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_WIN)
1620 return sa->replay_window;
1625 int xfrmnl_sa_set_replay_window (
struct xfrmnl_sa* sa,
unsigned int replay_window)
1627 sa->replay_window = replay_window;
1628 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_WIN;
1633 int xfrmnl_sa_get_flags (
struct xfrmnl_sa* sa)
1635 if (sa->ce_mask & XFRM_SA_ATTR_FLAGS)
1641 int xfrmnl_sa_set_flags (
struct xfrmnl_sa* sa,
unsigned int flags)
1644 sa->ce_mask |= XFRM_SA_ATTR_FLAGS;
1665 int xfrmnl_sa_get_aead_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
unsigned int* icv_len,
char* key)
1667 if (sa->ce_mask & XFRM_SA_ATTR_ALG_AEAD)
1670 strcpy (alg_name, sa->aead->alg_name);
1672 *key_len = sa->aead->alg_key_len;
1674 *icv_len = sa->aead->alg_icv_len;
1676 memcpy (key, sa->aead->alg_key, ((sa->aead->alg_key_len + 7)/8));
1684 int xfrmnl_sa_set_aead_params (
struct xfrmnl_sa* sa,
const char* alg_name,
unsigned int key_len,
unsigned int icv_len,
const char* key)
1686 _nl_auto_free
struct xfrmnl_algo_aead *b = NULL;
1687 size_t keysize =
sizeof (uint8_t) * ((key_len + 7)/8);
1688 uint32_t newlen =
sizeof (
struct xfrmnl_algo_aead) + keysize;
1691 if (strlen (alg_name) >=
sizeof (sa->aead->alg_name))
1693 if (!(b = calloc (1, newlen)))
1696 strcpy (b->alg_name, alg_name);
1697 b->alg_key_len = key_len;
1698 b->alg_icv_len = icv_len;
1699 memcpy (b->alg_key, key, keysize);
1702 sa->aead = _nl_steal_pointer (&b);
1703 sa->ce_mask |= XFRM_SA_ATTR_ALG_AEAD;
1723 int xfrmnl_sa_get_auth_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
unsigned int* trunc_len,
char* key)
1725 if (sa->ce_mask & XFRM_SA_ATTR_ALG_AUTH)
1728 strcpy (alg_name, sa->auth->alg_name);
1730 *key_len = sa->auth->alg_key_len;
1732 *trunc_len = sa->auth->alg_trunc_len;
1734 memcpy (key, sa->auth->alg_key, (sa->auth->alg_key_len + 7)/8);
1742 int xfrmnl_sa_set_auth_params (
struct xfrmnl_sa* sa,
const char* alg_name,
unsigned int key_len,
unsigned int trunc_len,
const char* key)
1744 _nl_auto_free
struct xfrmnl_algo_auth *b = NULL;
1745 size_t keysize =
sizeof (uint8_t) * ((key_len + 7)/8);
1746 uint32_t newlen =
sizeof (
struct xfrmnl_algo_auth) + keysize;
1748 if (strlen (alg_name) >=
sizeof (sa->auth->alg_name))
1750 if (!(b = calloc (1, newlen)))
1753 strcpy (b->alg_name, alg_name);
1754 b->alg_key_len = key_len;
1755 b->alg_trunc_len = trunc_len;
1756 memcpy (b->alg_key, key, keysize);
1759 sa->auth = _nl_steal_pointer (&b);
1760 sa->ce_mask |= XFRM_SA_ATTR_ALG_AUTH;
1779 int xfrmnl_sa_get_crypto_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
char* key)
1781 if (sa->ce_mask & XFRM_SA_ATTR_ALG_CRYPT)
1784 strcpy (alg_name, sa->crypt->alg_name);
1786 *key_len = sa->crypt->alg_key_len;
1788 memcpy (key, sa->crypt->alg_key, ((sa->crypt->alg_key_len + 7)/8));
1796 int xfrmnl_sa_set_crypto_params (
struct xfrmnl_sa* sa,
const char* alg_name,
unsigned int key_len,
const char* key)
1798 _nl_auto_free
struct xfrmnl_algo *b = NULL;
1799 size_t keysize =
sizeof (uint8_t) * ((key_len + 7)/8);
1800 uint32_t newlen =
sizeof (
struct xfrmnl_algo) + keysize;
1802 if (strlen (alg_name) >=
sizeof (sa->crypt->alg_name))
1804 if (!(b = calloc (1, newlen)))
1807 strcpy (b->alg_name, alg_name);
1808 b->alg_key_len = key_len;
1809 memcpy (b->alg_key, key, keysize);
1812 sa->crypt = _nl_steal_pointer(&b);
1813 sa->ce_mask |= XFRM_SA_ATTR_ALG_CRYPT;
1832 int xfrmnl_sa_get_comp_params (
struct xfrmnl_sa* sa,
char* alg_name,
unsigned int* key_len,
char* key)
1834 if (sa->ce_mask & XFRM_SA_ATTR_ALG_COMP)
1837 strcpy (alg_name, sa->comp->alg_name);
1839 *key_len = sa->comp->alg_key_len;
1841 memcpy (key, sa->comp->alg_key, ((sa->comp->alg_key_len + 7)/8));
1849 int xfrmnl_sa_set_comp_params (
struct xfrmnl_sa* sa,
const char* alg_name,
unsigned int key_len,
const char* key)
1851 _nl_auto_free
struct xfrmnl_algo *b = NULL;
1852 size_t keysize =
sizeof (uint8_t) * ((key_len + 7)/8);
1853 uint32_t newlen =
sizeof (
struct xfrmnl_algo) + keysize;
1855 if (strlen (alg_name) >=
sizeof (sa->comp->alg_name))
1857 if (!(b = calloc (1, newlen)))
1860 strcpy (b->alg_name, alg_name);
1861 b->alg_key_len = key_len;
1862 memcpy (b->alg_key, key, keysize);
1865 sa->comp = _nl_steal_pointer(&b);
1866 sa->ce_mask |= XFRM_SA_ATTR_ALG_COMP;
1870 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)
1872 if (sa->ce_mask & XFRM_SA_ATTR_ENCAP)
1874 *encap_type = sa->encap->encap_type;
1875 *encap_sport = sa->encap->encap_sport;
1876 *encap_dport = sa->encap->encap_dport;
1885 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)
1889 if (sa->encap->encap_oa)
1891 memset(sa->encap, 0, sizeof (*sa->encap));
1892 }
else if ((sa->encap = calloc(1,
sizeof(*sa->encap))) == NULL)
1896 sa->encap->encap_type = encap_type;
1897 sa->encap->encap_sport = encap_sport;
1898 sa->encap->encap_dport = encap_dport;
1900 sa->encap->encap_oa = encap_oa;
1902 sa->ce_mask |= XFRM_SA_ATTR_ENCAP;
1907 int xfrmnl_sa_get_tfcpad (
struct xfrmnl_sa* sa)
1909 if (sa->ce_mask & XFRM_SA_ATTR_TFCPAD)
1915 int xfrmnl_sa_set_tfcpad (
struct xfrmnl_sa* sa,
unsigned int tfcpad)
1917 sa->tfcpad = tfcpad;
1918 sa->ce_mask |= XFRM_SA_ATTR_TFCPAD;
1923 struct nl_addr* xfrmnl_sa_get_coaddr (
struct xfrmnl_sa* sa)
1925 if (sa->ce_mask & XFRM_SA_ATTR_COADDR)
1931 int xfrmnl_sa_set_coaddr (
struct xfrmnl_sa* sa,
struct nl_addr* coaddr)
1939 sa->coaddr = coaddr;
1941 sa->ce_mask |= XFRM_SA_ATTR_COADDR;
1946 int xfrmnl_sa_get_mark (
struct xfrmnl_sa* sa,
unsigned int* mark_mask,
unsigned int* mark_value)
1948 if (mark_mask == NULL || mark_value == NULL)
1951 if (sa->ce_mask & XFRM_SA_ATTR_MARK)
1953 *mark_mask = sa->mark.m;
1954 *mark_value = sa->mark.v;
1962 int xfrmnl_sa_set_mark (
struct xfrmnl_sa* sa,
unsigned int value,
unsigned int mask)
1966 sa->ce_mask |= XFRM_SA_ATTR_MARK;
1990 int xfrmnl_sa_get_sec_ctx (
struct xfrmnl_sa* sa,
unsigned int* doi,
unsigned int* alg,
1991 unsigned int* len,
unsigned int* sid,
char* ctx_str)
1993 if (sa->ce_mask & XFRM_SA_ATTR_SECCTX)
1996 *doi = sa->sec_ctx->ctx_doi;
1998 *alg = sa->sec_ctx->ctx_alg;
2000 *len = sa->sec_ctx->ctx_len;
2002 memcpy (ctx_str, sa->sec_ctx->ctx, sa->sec_ctx->ctx_len);
2023 int xfrmnl_sa_set_sec_ctx (
struct xfrmnl_sa* sa,
unsigned int doi,
unsigned int alg,
unsigned int len,
2024 unsigned int sid,
const char* ctx_str)
2026 _nl_auto_free
struct xfrmnl_user_sec_ctx *b = NULL;
2028 if (!(b = calloc(1,
sizeof (
struct xfrmnl_user_sec_ctx) + 1 + len)))
2031 b->len =
sizeof(
struct xfrmnl_user_sec_ctx) + len;
2032 b->exttype = XFRMA_SEC_CTX;
2036 memcpy (b->ctx, ctx_str, len);
2040 sa->sec_ctx = _nl_steal_pointer(&b);
2041 sa->ce_mask |= XFRM_SA_ATTR_SECCTX;
2046 int xfrmnl_sa_get_replay_maxage (
struct xfrmnl_sa* sa)
2048 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_MAXAGE)
2049 return sa->replay_maxage;
2054 int xfrmnl_sa_set_replay_maxage (
struct xfrmnl_sa* sa,
unsigned int replay_maxage)
2056 sa->replay_maxage = replay_maxage;
2057 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXAGE;
2062 int xfrmnl_sa_get_replay_maxdiff (
struct xfrmnl_sa* sa)
2064 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_MAXDIFF)
2065 return sa->replay_maxdiff;
2070 int xfrmnl_sa_set_replay_maxdiff (
struct xfrmnl_sa* sa,
unsigned int replay_maxdiff)
2072 sa->replay_maxdiff = replay_maxdiff;
2073 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_MAXDIFF;
2078 int xfrmnl_sa_get_replay_state (
struct xfrmnl_sa* sa,
unsigned int* oseq,
unsigned int* seq,
unsigned int* bmp)
2080 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
2082 if (sa->replay_state_esn == NULL)
2084 *oseq = sa->replay_state.oseq;
2085 *seq = sa->replay_state.seq;
2086 *bmp = sa->replay_state.bitmap;
2099 int xfrmnl_sa_set_replay_state (
struct xfrmnl_sa* sa,
unsigned int oseq,
unsigned int seq,
unsigned int bitmap)
2101 sa->replay_state.oseq = oseq;
2102 sa->replay_state.seq = seq;
2103 sa->replay_state.bitmap = bitmap;
2104 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
2109 int xfrmnl_sa_get_replay_state_esn (
struct xfrmnl_sa* sa,
unsigned int* oseq,
unsigned int* seq,
unsigned int* oseq_hi,
2110 unsigned int* seq_hi,
unsigned int* replay_window,
unsigned int* bmp_len,
unsigned int* bmp)
2112 if (sa->ce_mask & XFRM_SA_ATTR_REPLAY_STATE)
2114 if (sa->replay_state_esn)
2116 *oseq = sa->replay_state_esn->oseq;
2117 *seq = sa->replay_state_esn->seq;
2118 *oseq_hi= sa->replay_state_esn->oseq_hi;
2119 *seq_hi = sa->replay_state_esn->seq_hi;
2120 *replay_window = sa->replay_state_esn->replay_window;
2121 *bmp_len = sa->replay_state_esn->bmp_len;
2122 memcpy (bmp, sa->replay_state_esn->bmp, sa->replay_state_esn->bmp_len * sizeof (uint32_t));
2135 int xfrmnl_sa_set_replay_state_esn (
struct xfrmnl_sa* sa,
unsigned int oseq,
unsigned int seq,
2136 unsigned int oseq_hi,
unsigned int seq_hi,
unsigned int replay_window,
2137 unsigned int bmp_len,
unsigned int* bmp)
2139 _nl_auto_free
struct xfrmnl_replay_state_esn *b = NULL;
2141 if (!(b = calloc (1,
sizeof (
struct xfrmnl_replay_state_esn) + (
sizeof (uint32_t) * bmp_len))))
2146 b->oseq_hi = oseq_hi;
2148 b->replay_window = replay_window;
2149 b->bmp_len = bmp_len;
2150 memcpy (b->bmp, bmp, bmp_len * sizeof (uint32_t));
2152 free(sa->replay_state_esn);
2153 sa->replay_state_esn = _nl_steal_pointer(&b);
2154 sa->ce_mask |= XFRM_SA_ATTR_REPLAY_STATE;
2159 int xfrmnl_sa_is_hardexpiry_reached (
struct xfrmnl_sa* sa)
2161 if (sa->ce_mask & XFRM_SA_ATTR_EXPIRE)
2162 return (sa->hard > 0 ? 1: 0);
2167 int xfrmnl_sa_is_expiry_reached (
struct xfrmnl_sa* sa)
2169 if (sa->ce_mask & XFRM_SA_ATTR_EXPIRE)
2177 static struct nl_object_ops xfrm_sa_obj_ops = {
2178 .oo_name =
"xfrm/sa",
2179 .oo_size =
sizeof(
struct xfrmnl_sa),
2180 .oo_constructor = xfrm_sa_alloc_data,
2181 .oo_free_data = xfrm_sa_free_data,
2182 .oo_clone = xfrm_sa_clone,
2188 .oo_compare = xfrm_sa_compare,
2189 .oo_attrs2str = xfrm_sa_attrs2str,
2190 .oo_id_attrs = (XFRM_SA_ATTR_DADDR | XFRM_SA_ATTR_SPI | XFRM_SA_ATTR_PROTO),
2193 static struct nl_af_group xfrm_sa_groups[] = {
2194 { AF_UNSPEC, XFRMNLGRP_SA },
2195 { AF_UNSPEC, XFRMNLGRP_EXPIRE },
2196 { END_OF_GROUP_LIST },
2199 static struct nl_cache_ops xfrmnl_sa_ops = {
2200 .co_name =
"xfrm/sa",
2201 .co_hdrsize =
sizeof(
struct xfrm_usersa_info),
2203 { XFRM_MSG_NEWSA, NL_ACT_NEW,
"new" },
2204 { XFRM_MSG_DELSA, NL_ACT_DEL,
"del" },
2205 { XFRM_MSG_GETSA, NL_ACT_GET,
"get" },
2206 { XFRM_MSG_EXPIRE, NL_ACT_UNSPEC,
"expire"},
2207 { XFRM_MSG_UPDSA, NL_ACT_NEW,
"update"},
2208 END_OF_MSGTYPES_LIST,
2210 .co_protocol = NETLINK_XFRM,
2211 .co_groups = xfrm_sa_groups,
2212 .co_request_update = xfrm_sa_request_update,
2213 .co_msg_parser = xfrm_sa_msg_parser,
2214 .co_obj_ops = &xfrm_sa_obj_ops,
2215 .co_include_event = &xfrm_sa_update_cache
2223 static void __attribute__ ((constructor)) xfrm_sa_init(
void)
2228 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 nlmsg_parse(struct nlmsghdr *nlh, int hdrlen, struct nlattr *tb[], int maxtype, const struct nla_policy *policy)
parse attributes of a 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.
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.
uint64_t nl_object_diff64(struct nl_object *a, struct nl_object *b)
Compute bitmask representing difference in attribute values.
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.
int nla_put(struct nl_msg *msg, int attrtype, int datalen, const void *data)
Add a unspecific attribute to 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.
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.