/* $OpenBSD: pfkeyv2_convert.c,v 1.5 2001/07/05 16:48:04 jjbg Exp $ */ /* * The author of this code is Angelos D. Keromytis (angelos@keromytis.org) * * Part of this code is based on code written by Craig Metz (cmetz@inner.net) * for NRL. Those licenses follow this one. * * Copyright (c) 2001 Angelos D. Keromytis. * * Permission to use, copy, and modify this software with or without fee * is hereby granted, provided that this entire notice is included in * all copies of any software which is or includes a copy or * modification of this software. * You may use this code under the GNU public license if you so wish. Please * contribute changes back to the authors under this freer than GPL license * so that we may further the use of strong encryption without limitations to * all. * * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR * PURPOSE. */ /* * @(#)COPYRIGHT 1.1 (NRL) 17 January 1995 * * NRL grants permission for redistribution and use in source and binary * forms, with or without modification, of the software and documentation * created at NRL provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgements: * This product includes software developed by the University of * California, Berkeley and its contributors. * This product includes software developed at the Information * Technology Division, US Naval Research Laboratory. * 4. Neither the name of the NRL nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THE SOFTWARE PROVIDED BY NRL IS PROVIDED BY NRL AND CONTRIBUTORS ``AS * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NRL OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation * are those of the authors and should not be interpreted as representing * official policies, either expressed or implied, of the US Naval * Research Laboratory (NRL). */ /* * Copyright (c) 1995, 1996, 1997, 1998, 1999 Craig Metz. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the author nor the names of any contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include /* * (Partly) Initialize a TDB based on an SADB_SA payload. Other parts * of the TDB will be initialized by other import routines, and tdb_init(). */ void import_sa(struct tdb *tdb, struct sadb_sa *sadb_sa, struct ipsecinit *ii) { if (!sadb_sa) return; if (ii) { ii->ii_encalg = sadb_sa->sadb_sa_encrypt; ii->ii_authalg = sadb_sa->sadb_sa_auth; ii->ii_compalg = sadb_sa->sadb_sa_encrypt; /* Yeurk! */ tdb->tdb_spi = sadb_sa->sadb_sa_spi; tdb->tdb_wnd = sadb_sa->sadb_sa_replay; if (sadb_sa->sadb_sa_flags & SADB_SAFLAGS_PFS) tdb->tdb_flags |= TDBF_PFS; if (sadb_sa->sadb_sa_flags & SADB_X_SAFLAGS_HALFIV) tdb->tdb_flags |= TDBF_HALFIV; if (sadb_sa->sadb_sa_flags & SADB_X_SAFLAGS_TUNNEL) tdb->tdb_flags |= TDBF_TUNNELING; if (sadb_sa->sadb_sa_flags & SADB_X_SAFLAGS_RANDOMPADDING) tdb->tdb_flags |= TDBF_RANDOMPADDING; if (sadb_sa->sadb_sa_flags & SADB_X_SAFLAGS_NOREPLAY) tdb->tdb_flags |= TDBF_NOREPLAY; } if (sadb_sa->sadb_sa_state != SADB_SASTATE_MATURE) tdb->tdb_flags |= TDBF_INVALID; } /* * Export some of the information on a TDB. */ void export_sa(void **p, struct tdb *tdb) { struct sadb_sa *sadb_sa = (struct sadb_sa *) *p; sadb_sa->sadb_sa_len = sizeof(struct sadb_sa) / sizeof(uint64_t); sadb_sa->sadb_sa_spi = tdb->tdb_spi; sadb_sa->sadb_sa_replay = tdb->tdb_wnd; if (tdb->tdb_flags & TDBF_INVALID) sadb_sa->sadb_sa_state = SADB_SASTATE_LARVAL; if (tdb->tdb_sproto == IPPROTO_IPCOMP) { switch (tdb->tdb_compalgxform->type) { case CRYPTO_DEFLATE_COMP: sadb_sa->sadb_sa_encrypt = SADB_X_CALG_DEFLATE; break; } } if (tdb->tdb_authalgxform) { switch (tdb->tdb_authalgxform->type) { case CRYPTO_MD5_HMAC: sadb_sa->sadb_sa_auth = SADB_AALG_MD5HMAC; break; case CRYPTO_SHA1_HMAC: sadb_sa->sadb_sa_auth = SADB_AALG_SHA1HMAC; break; case CRYPTO_RIPEMD160_HMAC: sadb_sa->sadb_sa_auth = SADB_AALG_RIPEMD160HMAC; break; case CRYPTO_MD5_KPDK: sadb_sa->sadb_sa_auth = SADB_X_AALG_MD5; break; case CRYPTO_SHA1_KPDK: sadb_sa->sadb_sa_auth = SADB_X_AALG_SHA1; break; } } if (tdb->tdb_encalgxform) { switch (tdb->tdb_encalgxform->type) { case CRYPTO_DES_CBC: sadb_sa->sadb_sa_encrypt = SADB_EALG_DESCBC; break; case CRYPTO_3DES_CBC: sadb_sa->sadb_sa_encrypt = SADB_EALG_3DESCBC; break; case CRYPTO_AES_CBC: sadb_sa->sadb_sa_encrypt = SADB_X_EALG_AES; break; case CRYPTO_CAST_CBC: sadb_sa->sadb_sa_encrypt = SADB_X_EALG_CAST; break; case CRYPTO_BLF_CBC: sadb_sa->sadb_sa_encrypt = SADB_X_EALG_BLF; break; case CRYPTO_SKIPJACK_CBC: sadb_sa->sadb_sa_encrypt = SADB_X_EALG_SKIPJACK; break; } } if (tdb->tdb_flags & TDBF_PFS) sadb_sa->sadb_sa_flags |= SADB_SAFLAGS_PFS; /* Only relevant for the "old" IPsec transforms. */ if (tdb->tdb_flags & TDBF_HALFIV) sadb_sa->sadb_sa_flags |= SADB_X_SAFLAGS_HALFIV; if (tdb->tdb_flags & TDBF_TUNNELING) sadb_sa->sadb_sa_flags |= SADB_X_SAFLAGS_TUNNEL; if (tdb->tdb_flags & TDBF_RANDOMPADDING) sadb_sa->sadb_sa_flags |= SADB_X_SAFLAGS_RANDOMPADDING; if (tdb->tdb_flags & TDBF_NOREPLAY) sadb_sa->sadb_sa_flags |= SADB_X_SAFLAGS_NOREPLAY; *p += sizeof(struct sadb_sa); } /* * Initialize expirations and counters based on lifetime payload. */ void import_lifetime(struct tdb *tdb, struct sadb_lifetime *sadb_lifetime, int type) { if (!sadb_lifetime) return; switch (type) { case PFKEYV2_LIFETIME_HARD: if ((tdb->tdb_exp_allocations = sadb_lifetime->sadb_lifetime_allocations) != 0) tdb->tdb_flags |= TDBF_ALLOCATIONS; else tdb->tdb_flags &= ~TDBF_ALLOCATIONS; if ((tdb->tdb_exp_bytes = sadb_lifetime->sadb_lifetime_bytes) != 0) tdb->tdb_flags |= TDBF_BYTES; else tdb->tdb_flags &= ~TDBF_BYTES; if ((tdb->tdb_exp_timeout = sadb_lifetime->sadb_lifetime_addtime) != 0) { tdb->tdb_flags |= TDBF_TIMER; timeout_add(&tdb->tdb_timer_tmo, hz * tdb->tdb_exp_timeout); } else tdb->tdb_flags &= ~TDBF_TIMER; if ((tdb->tdb_exp_first_use = sadb_lifetime->sadb_lifetime_usetime) != 0) { tdb->tdb_flags |= TDBF_FIRSTUSE; timeout_add(&tdb->tdb_first_tmo, hz * tdb->tdb_exp_first_use); } else tdb->tdb_flags &= ~TDBF_FIRSTUSE; break; case PFKEYV2_LIFETIME_SOFT: if ((tdb->tdb_soft_allocations = sadb_lifetime->sadb_lifetime_allocations) != 0) tdb->tdb_flags |= TDBF_SOFT_ALLOCATIONS; else tdb->tdb_flags &= ~TDBF_SOFT_ALLOCATIONS; if ((tdb->tdb_soft_bytes = sadb_lifetime->sadb_lifetime_bytes) != 0) tdb->tdb_flags |= TDBF_SOFT_BYTES; else tdb->tdb_flags &= ~TDBF_SOFT_BYTES; if ((tdb->tdb_soft_timeout = sadb_lifetime->sadb_lifetime_addtime) != 0) { tdb->tdb_flags |= TDBF_SOFT_TIMER; timeout_add(&tdb->tdb_stimer_tmo, hz * tdb->tdb_soft_timeout); } else tdb->tdb_flags &= ~TDBF_SOFT_TIMER; if ((tdb->tdb_soft_first_use = sadb_lifetime->sadb_lifetime_usetime) != 0) { tdb->tdb_flags |= TDBF_SOFT_FIRSTUSE; timeout_add(&tdb->tdb_sfirst_tmo, hz * tdb->tdb_soft_first_use); } else tdb->tdb_flags &= ~TDBF_SOFT_FIRSTUSE; break; case PFKEYV2_LIFETIME_CURRENT: /* Nothing fancy here. */ tdb->tdb_cur_allocations = sadb_lifetime->sadb_lifetime_allocations; tdb->tdb_cur_bytes = sadb_lifetime->sadb_lifetime_bytes; tdb->tdb_established = sadb_lifetime->sadb_lifetime_addtime; tdb->tdb_first_use = sadb_lifetime->sadb_lifetime_usetime; } } /* * Export TDB expiration information. */ void export_lifetime(void **p, struct tdb *tdb, int type) { struct sadb_lifetime *sadb_lifetime = (struct sadb_lifetime *) *p; sadb_lifetime->sadb_lifetime_len = sizeof(struct sadb_lifetime) / sizeof(uint64_t); switch (type) { case PFKEYV2_LIFETIME_HARD: if (tdb->tdb_flags & TDBF_ALLOCATIONS) sadb_lifetime->sadb_lifetime_allocations = tdb->tdb_exp_allocations; if (tdb->tdb_flags & TDBF_BYTES) sadb_lifetime->sadb_lifetime_bytes = tdb->tdb_exp_bytes; if (tdb->tdb_flags & TDBF_TIMER) sadb_lifetime->sadb_lifetime_addtime = tdb->tdb_exp_timeout; if (tdb->tdb_flags & TDBF_FIRSTUSE) sadb_lifetime->sadb_lifetime_usetime = tdb->tdb_exp_first_use; break; case PFKEYV2_LIFETIME_SOFT: if (tdb->tdb_flags & TDBF_SOFT_ALLOCATIONS) sadb_lifetime->sadb_lifetime_allocations = tdb->tdb_soft_allocations; if (tdb->tdb_flags & TDBF_SOFT_BYTES) sadb_lifetime->sadb_lifetime_bytes = tdb->tdb_soft_bytes; if (tdb->tdb_flags & TDBF_SOFT_TIMER) sadb_lifetime->sadb_lifetime_addtime = tdb->tdb_soft_timeout; if (tdb->tdb_flags & TDBF_SOFT_FIRSTUSE) sadb_lifetime->sadb_lifetime_usetime = tdb->tdb_soft_first_use; break; case PFKEYV2_LIFETIME_CURRENT: sadb_lifetime->sadb_lifetime_allocations = tdb->tdb_cur_allocations; sadb_lifetime->sadb_lifetime_bytes = tdb->tdb_cur_bytes; sadb_lifetime->sadb_lifetime_addtime = tdb->tdb_established; sadb_lifetime->sadb_lifetime_usetime = tdb->tdb_first_use; break; } *p += sizeof(struct sadb_lifetime); } /* * Copy an SADB_ADDRESS payload to a struct sockaddr. */ void import_address(struct sockaddr *sa, struct sadb_address *sadb_address) { int salen; struct sockaddr *ssa = (struct sockaddr *)((void *) sadb_address + sizeof(struct sadb_address)); if (!sadb_address) return; if (ssa->sa_len) salen = ssa->sa_len; else switch(ssa->sa_family) { #ifdef INET case AF_INET: salen = sizeof(struct sockaddr_in); break; #endif /* INET */ #if INET6 case AF_INET6: salen = sizeof(struct sockaddr_in6); break; #endif /* INET6 */ default: return; } bcopy(ssa, sa, salen); sa->sa_len = salen; } /* * Export a struct sockaddr as an SADB_ADDRESS payload. */ void export_address(void **p, struct sockaddr *sa) { struct sadb_address *sadb_address = (struct sadb_address *) *p; sadb_address->sadb_address_len = (sizeof(struct sadb_address) + PADUP(SA_LEN(sa))) / sizeof(uint64_t); *p += sizeof(struct sadb_address); bcopy(sa, *p, SA_LEN(sa)); ((struct sockaddr *) *p)->sa_family = sa->sa_family; *p += PADUP(SA_LEN(sa)); } /* * Import authentication information into the TDB. */ void import_auth(struct tdb *tdb, struct sadb_x_cred *sadb_auth, int dstauth) { struct ipsec_ref **ipr; if (!sadb_auth) return; if (dstauth == PFKEYV2_AUTH_REMOTE) ipr = &tdb->tdb_remote_auth; else ipr = &tdb->tdb_local_auth; MALLOC(*ipr, struct ipsec_ref *, EXTLEN(sadb_auth) - sizeof(struct sadb_x_cred) + sizeof(struct ipsec_ref), M_CREDENTIALS, M_WAITOK); (*ipr)->ref_len = EXTLEN(sadb_auth) - sizeof(struct sadb_x_cred); switch (sadb_auth->sadb_x_cred_type) { case SADB_X_AUTHTYPE_PASSPHRASE: (*ipr)->ref_type = IPSP_AUTH_PASSPHRASE; break; case SADB_X_AUTHTYPE_RSA: (*ipr)->ref_type = IPSP_AUTH_RSA; break; default: FREE(*ipr, M_CREDENTIALS); *ipr = NULL; return; } (*ipr)->ref_count = 1; (*ipr)->ref_malloctype = M_CREDENTIALS; bcopy((void *) sadb_auth + sizeof(struct sadb_x_cred), (*ipr) + 1, (*ipr)->ref_len); } /* * Import a set of credentials into the TDB. */ void import_credentials(struct tdb *tdb, struct sadb_x_cred *sadb_cred, int dstcred) { struct ipsec_ref **ipr; if (!sadb_cred) return; if (dstcred == PFKEYV2_CRED_REMOTE) ipr = &tdb->tdb_remote_cred; else ipr = &tdb->tdb_local_cred; MALLOC(*ipr, struct ipsec_ref *, EXTLEN(sadb_cred) - sizeof(struct sadb_x_cred) + sizeof(struct ipsec_ref), M_CREDENTIALS, M_WAITOK); (*ipr)->ref_len = EXTLEN(sadb_cred) - sizeof(struct sadb_x_cred); switch (sadb_cred->sadb_x_cred_type) { case SADB_X_CREDTYPE_X509: (*ipr)->ref_type = IPSP_CRED_X509; break; case SADB_X_CREDTYPE_KEYNOTE: (*ipr)->ref_type = IPSP_CRED_KEYNOTE; break; default: FREE(*ipr, M_CREDENTIALS); *ipr = NULL; return; } (*ipr)->ref_count = 1; (*ipr)->ref_malloctype = M_CREDENTIALS; bcopy((void *) sadb_cred + sizeof(struct sadb_x_cred), (*ipr) + 1, (*ipr)->ref_len); } /* * Import an identity payload into the TDB. */ void import_identity(struct tdb *tdb, struct sadb_ident *sadb_ident, int type) { struct ipsec_ref **ipr; if (!sadb_ident) return; if (type == PFKEYV2_IDENTITY_SRC) ipr = &tdb->tdb_srcid; else ipr = &tdb->tdb_dstid; MALLOC(*ipr, struct ipsec_ref *, EXTLEN(sadb_ident) - sizeof(struct sadb_ident) + sizeof(struct ipsec_ref), M_CREDENTIALS, M_WAITOK); (*ipr)->ref_len = EXTLEN(sadb_ident) - sizeof(struct sadb_ident); switch (sadb_ident->sadb_ident_type) { case SADB_IDENTTYPE_PREFIX: (*ipr)->ref_type = IPSP_IDENTITY_PREFIX; break; case SADB_IDENTTYPE_FQDN: (*ipr)->ref_type = IPSP_IDENTITY_FQDN; break; case SADB_IDENTTYPE_USERFQDN: (*ipr)->ref_type = IPSP_IDENTITY_USERFQDN; break; case SADB_X_IDENTTYPE_CONNECTION: (*ipr)->ref_type = IPSP_IDENTITY_CONNECTION; break; default: FREE(*ipr, M_CREDENTIALS); *ipr = NULL; return; } (*ipr)->ref_count = 1; (*ipr)->ref_malloctype = M_CREDENTIALS; bcopy((void *) sadb_ident + sizeof(struct sadb_ident), (*ipr) + 1, (*ipr)->ref_len); } void export_credentials(void **p, struct tdb *tdb, int dstcred) { struct ipsec_ref **ipr; struct sadb_x_cred *sadb_cred = (struct sadb_x_cred *) *p; if (dstcred == PFKEYV2_CRED_REMOTE) ipr = &tdb->tdb_remote_cred; else ipr = &tdb->tdb_local_cred; sadb_cred->sadb_x_cred_len = (sizeof(struct sadb_x_cred) + PADUP((*ipr)->ref_len)) / sizeof(uint64_t); switch ((*ipr)->ref_type) { case IPSP_CRED_KEYNOTE: sadb_cred->sadb_x_cred_type = SADB_X_CREDTYPE_KEYNOTE; break; case IPSP_CRED_X509: sadb_cred->sadb_x_cred_type = SADB_X_CREDTYPE_X509; break; } *p += sizeof(struct sadb_x_cred); bcopy((*ipr) + 1, *p, (*ipr)->ref_len); *p += PADUP((*ipr)->ref_len); } void export_auth(void **p, struct tdb *tdb, int dstauth) { struct ipsec_ref **ipr; struct sadb_x_cred *sadb_auth = (struct sadb_x_cred *) *p; if (dstauth == PFKEYV2_AUTH_REMOTE) ipr = &tdb->tdb_remote_auth; else ipr = &tdb->tdb_local_auth; sadb_auth->sadb_x_cred_len = (sizeof(struct sadb_x_cred) + PADUP((*ipr)->ref_len)) / sizeof(uint64_t); switch ((*ipr)->ref_type) { case IPSP_CRED_KEYNOTE: sadb_auth->sadb_x_cred_type = SADB_X_CREDTYPE_KEYNOTE; break; case IPSP_CRED_X509: sadb_auth->sadb_x_cred_type = SADB_X_CREDTYPE_X509; break; } *p += sizeof(struct sadb_x_cred); bcopy((*ipr) + 1, *p, (*ipr)->ref_len); *p += PADUP((*ipr)->ref_len); } void export_identity(void **p, struct tdb *tdb, int type) { struct ipsec_ref **ipr; struct sadb_ident *sadb_ident = (struct sadb_ident *) *p; if (type == PFKEYV2_IDENTITY_SRC) ipr = &tdb->tdb_srcid; else ipr = &tdb->tdb_dstid; sadb_ident->sadb_ident_len = (sizeof(struct sadb_ident) + PADUP((*ipr)->ref_len)) / sizeof(uint64_t); switch ((*ipr)->ref_type) { case IPSP_IDENTITY_PREFIX: sadb_ident->sadb_ident_type = SADB_IDENTTYPE_PREFIX; break; case IPSP_IDENTITY_FQDN: sadb_ident->sadb_ident_type = SADB_IDENTTYPE_FQDN; break; case IPSP_IDENTITY_USERFQDN: sadb_ident->sadb_ident_type = SADB_IDENTTYPE_USERFQDN; break; case IPSP_IDENTITY_CONNECTION: sadb_ident->sadb_ident_type = SADB_X_IDENTTYPE_CONNECTION; break; } *p += sizeof(struct sadb_ident); bcopy((*ipr) + 1, *p, (*ipr)->ref_len); *p += PADUP((*ipr)->ref_len); } /* ... */ void import_key(struct ipsecinit *ii, struct sadb_key *sadb_key, int type) { if (!sadb_key) return; if (type == PFKEYV2_ENCRYPTION_KEY) { /* Encryption key */ ii->ii_enckeylen = sadb_key->sadb_key_bits / 8; ii->ii_enckey = (void *)sadb_key + sizeof(struct sadb_key); } else { ii->ii_authkeylen = sadb_key->sadb_key_bits / 8; ii->ii_authkey = (void *)sadb_key + sizeof(struct sadb_key); } } void export_key(void **p, struct tdb *tdb, int type) { struct sadb_key *sadb_key = (struct sadb_key *) *p; if (type == PFKEYV2_ENCRYPTION_KEY) { sadb_key->sadb_key_len = (sizeof(struct sadb_key) + PADUP(tdb->tdb_emxkeylen)) / sizeof(uint64_t); sadb_key->sadb_key_bits = tdb->tdb_emxkeylen * 8; *p += sizeof(struct sadb_key); bcopy(tdb->tdb_emxkey, *p, tdb->tdb_emxkeylen); *p += PADUP(tdb->tdb_emxkeylen); } else { sadb_key->sadb_key_len = (sizeof(struct sadb_key) + PADUP(tdb->tdb_amxkeylen)) / sizeof(uint64_t); sadb_key->sadb_key_bits = tdb->tdb_amxkeylen * 8; *p += sizeof(struct sadb_key); bcopy(tdb->tdb_amxkey, *p, tdb->tdb_amxkeylen); *p += PADUP(tdb->tdb_amxkeylen); } }