-/* $KAME: key.c,v 1.76 2000/03/27 05:11:04 sumikawa Exp $ */
+/* $FreeBSD: src/sys/netkey/key.c,v 1.16.2.13 2002/07/24 18:17:40 ume Exp $ */
+/* $KAME: key.c,v 1.191 2001/06/27 10:46:49 sakane Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* This code is referd to RFC 2367
*/
-#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(__NetBSD__)
-#include "opt_inet.h"
-#ifdef __NetBSD__
-#include "opt_ipsec.h"
-#endif
-#endif
-
-/* this is for backward compatibility. we should not touch those. */
-#define ss_len __ss_len
-#define ss_family __ss_family
-
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
-#if defined(__FreeBSD__) || defined (__APPLE__)
#include <sys/sysctl.h>
-#endif
#include <sys/errno.h>
#include <sys/proc.h>
#include <sys/queue.h>
+#include <sys/syslog.h>
#include <net/if.h>
#include <net/route.h>
#include <netinet/in_pcb.h>
#endif
#if INET6
-#if !(defined(__bsdi__) && _BSDI_VERSION >= 199802)
#include <netinet6/in6_pcb.h>
-#endif
#endif /* INET6 */
#include <net/pfkeyv2.h>
#include <netkey/key.h>
#include <netkey/keysock.h>
#include <netkey/key_debug.h>
+#include <stdarg.h>
+
#include <netinet6/ipsec.h>
+#if INET6
+#include <netinet6/ipsec6.h>
+#endif
#include <netinet6/ah.h>
+#if INET6
+#include <netinet6/ah6.h>
+#endif
#if IPSEC_ESP
#include <netinet6/esp.h>
+#if INET6
+#include <netinet6/esp6.h>
+#endif
#endif
#include <netinet6/ipcomp.h>
+#if INET6
+#include <netinet6/ipcomp6.h>
+#endif
+
+
+/* randomness */
+#include <sys/random.h>
#include <net/net_osdep.h>
+#ifndef satosin
+#define satosin(s) ((struct sockaddr_in *)s)
+#endif
+
+#define FULLMASK 0xff
+
/*
* Note on SA reference counting:
* - SAs that are not in DEAD state will have (total external reference + 1)
static u_int key_larval_lifetime = 30; /* interval to expire acquiring, 30(s)*/
static int key_blockacq_count = 10; /* counter for blocking SADB_ACQUIRE.*/
static int key_blockacq_lifetime = 20; /* lifetime for blocking SADB_ACQUIRE.*/
+static int key_preferred_oldsa = 0; /* preferred old sa rather than new sa.*/
+static int natt_keepalive_interval = 29; /* interval between natt keepalives.*/
static u_int32_t acq_seq = 0;
static int key_tick_init_random = 0;
+__private_extern__ u_int32_t natt_now = 0;
static LIST_HEAD(_sptree, secpolicy) sptree[IPSEC_DIR_MAX]; /* SPD */
static LIST_HEAD(_sahtree, secashead) sahtree; /* SAD */
struct key_cb key_cb;
/* search order for SAs */
-static u_int saorder_state_valid[] = {
+static const u_int saorder_state_valid_prefer_old[] = {
SADB_SASTATE_DYING, SADB_SASTATE_MATURE,
- /*
- * This order is important because we must select a oldest SA
- * for outbound processing. For inbound, This is not important.
- */
};
-static u_int saorder_state_alive[] = {
+static const u_int saorder_state_valid_prefer_new[] = {
+ SADB_SASTATE_MATURE, SADB_SASTATE_DYING,
+};
+static const u_int saorder_state_alive[] = {
/* except DEAD */
SADB_SASTATE_MATURE, SADB_SASTATE_DYING, SADB_SASTATE_LARVAL
};
-static u_int saorder_state_any[] = {
+static const u_int saorder_state_any[] = {
SADB_SASTATE_MATURE, SADB_SASTATE_DYING,
SADB_SASTATE_LARVAL, SADB_SASTATE_DEAD
};
-#if defined(__FreeBSD__) || defined (__APPLE__)
+static const int minsize[] = {
+ sizeof(struct sadb_msg), /* SADB_EXT_RESERVED */
+ sizeof(struct sadb_sa), /* SADB_EXT_SA */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_CURRENT */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_HARD */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_SOFT */
+ sizeof(struct sadb_address), /* SADB_EXT_ADDRESS_SRC */
+ sizeof(struct sadb_address), /* SADB_EXT_ADDRESS_DST */
+ sizeof(struct sadb_address), /* SADB_EXT_ADDRESS_PROXY */
+ sizeof(struct sadb_key), /* SADB_EXT_KEY_AUTH */
+ sizeof(struct sadb_key), /* SADB_EXT_KEY_ENCRYPT */
+ sizeof(struct sadb_ident), /* SADB_EXT_IDENTITY_SRC */
+ sizeof(struct sadb_ident), /* SADB_EXT_IDENTITY_DST */
+ sizeof(struct sadb_sens), /* SADB_EXT_SENSITIVITY */
+ sizeof(struct sadb_prop), /* SADB_EXT_PROPOSAL */
+ sizeof(struct sadb_supported), /* SADB_EXT_SUPPORTED_AUTH */
+ sizeof(struct sadb_supported), /* SADB_EXT_SUPPORTED_ENCRYPT */
+ sizeof(struct sadb_spirange), /* SADB_EXT_SPIRANGE */
+ 0, /* SADB_X_EXT_KMPRIVATE */
+ sizeof(struct sadb_x_policy), /* SADB_X_EXT_POLICY */
+ sizeof(struct sadb_x_sa2), /* SADB_X_SA2 */
+};
+static const int maxsize[] = {
+ sizeof(struct sadb_msg), /* SADB_EXT_RESERVED */
+ sizeof(struct sadb_sa_2), /* SADB_EXT_SA */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_CURRENT */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_HARD */
+ sizeof(struct sadb_lifetime), /* SADB_EXT_LIFETIME_SOFT */
+ 0, /* SADB_EXT_ADDRESS_SRC */
+ 0, /* SADB_EXT_ADDRESS_DST */
+ 0, /* SADB_EXT_ADDRESS_PROXY */
+ 0, /* SADB_EXT_KEY_AUTH */
+ 0, /* SADB_EXT_KEY_ENCRYPT */
+ 0, /* SADB_EXT_IDENTITY_SRC */
+ 0, /* SADB_EXT_IDENTITY_DST */
+ 0, /* SADB_EXT_SENSITIVITY */
+ 0, /* SADB_EXT_PROPOSAL */
+ 0, /* SADB_EXT_SUPPORTED_AUTH */
+ 0, /* SADB_EXT_SUPPORTED_ENCRYPT */
+ sizeof(struct sadb_spirange), /* SADB_EXT_SPIRANGE */
+ 0, /* SADB_X_EXT_KMPRIVATE */
+ 0, /* SADB_X_EXT_POLICY */
+ sizeof(struct sadb_x_sa2), /* SADB_X_SA2 */
+};
+
+static int ipsec_esp_keymin = 256;
+static int ipsec_esp_auth = 0;
+static int ipsec_ah_keymin = 128;
+
SYSCTL_DECL(_net_key);
-//#if defined(IPSEC_DEBUG)
+
SYSCTL_INT(_net_key, KEYCTL_DEBUG_LEVEL, debug, CTLFLAG_RW, \
&key_debug_level, 0, "");
-//#endif /* defined(IPSEC_DEBUG) */
+
/* max count of trial for the decision of spi value */
SYSCTL_INT(_net_key, KEYCTL_SPI_TRY, spi_trycnt, CTLFLAG_RW, \
SYSCTL_INT(_net_key, KEYCTL_BLOCKACQ_LIFETIME, blockacq_lifetime, CTLFLAG_RW, \
&key_blockacq_lifetime, 0, "");
-#endif /* __FreeBSD__ */
+/* ESP auth */
+SYSCTL_INT(_net_key, KEYCTL_ESP_AUTH, esp_auth, CTLFLAG_RW, \
+ &ipsec_esp_auth, 0, "");
+
+/* minimum ESP key length */
+SYSCTL_INT(_net_key, KEYCTL_ESP_KEYMIN, esp_keymin, CTLFLAG_RW, \
+ &ipsec_esp_keymin, 0, "");
+
+/* minimum AH key length */
+SYSCTL_INT(_net_key, KEYCTL_AH_KEYMIN, ah_keymin, CTLFLAG_RW, \
+ &ipsec_ah_keymin, 0, "");
+
+/* perfered old SA rather than new SA */
+SYSCTL_INT(_net_key, KEYCTL_PREFERED_OLDSA, prefered_oldsa, CTLFLAG_RW,\
+ &key_preferred_oldsa, 0, "");
+
+/* time between NATT keepalives in seconds, 0 disabled */
+SYSCTL_INT(_net_key, KEYCTL_NATT_KEEPALIVE_INTERVAL, natt_keepalive_interval, CTLFLAG_RW,\
+ &natt_keepalive_interval, 0, "");
#ifndef LIST_FOREACH
#define LIST_FOREACH(elm, head, field) \
#define KEY_CHKSASTATE(head, sav, name) \
do { \
- if ((head) != (sav)) { \
- printf("%s: state mismatched (TREE=%d SA=%d)\n", \
- (name), (head), (sav)); \
- continue; \
- } \
+ if ((head) != (sav)) { \
+ ipseclog((LOG_DEBUG, "%s: state mismatched (TREE=%d SA=%d)\n", \
+ (name), (head), (sav))); \
+ continue; \
+ } \
} while (0)
#define KEY_CHKSPDIR(head, sp, name) \
do { \
- if ((head) != (sp)) { \
- printf("%s: direction mismatched (TREE=%d SP=%d), " \
- "anyway continue.\n", \
- (name), (head), (sp)); \
- } \
+ if ((head) != (sp)) { \
+ ipseclog((LOG_DEBUG, "%s: direction mismatched (TREE=%d SP=%d), " \
+ "anyway continue.\n", \
+ (name), (head), (sp))); \
+ } \
} while (0)
#if 1
* set parameters into secasindex buffer.
* Must allocate secasindex buffer before calling this function.
*/
-#define KEY_SETSECASIDX(p, m, s, d, idx) \
+#define KEY_SETSECASIDX(p, m, r, s, d, idx) \
do { \
bzero((idx), sizeof(struct secasindex)); \
(idx)->proto = (p); \
- (idx)->mode = (m)->sadb_msg_mode; \
- (idx)->reqid = (m)->sadb_msg_reqid; \
+ (idx)->mode = (m); \
+ (idx)->reqid = (r); \
bcopy((s), &(idx)->src, ((struct sockaddr *)(s))->sa_len); \
bcopy((d), &(idx)->dst, ((struct sockaddr *)(d))->sa_len); \
} while (0)
u_long getspi_count; /* the avarage of count to try to get new SPI */
} keystat;
-static struct secasvar *key_allocsa_policy __P((struct secasindex *saidx));
-static void key_freesp_so __P((struct secpolicy **sp));
-static struct secasvar *key_do_allocsa_policy __P((struct secashead *sah,
- u_int state));
-static void key_delsp __P((struct secpolicy *sp));
-static struct secpolicy *key_getsp __P((struct secpolicyindex *spidx));
-static struct secpolicy *key_getspbyid __P((u_int32_t id));
+struct sadb_msghdr {
+ struct sadb_msg *msg;
+ struct sadb_ext *ext[SADB_EXT_MAX + 1];
+ int extoff[SADB_EXT_MAX + 1];
+ int extlen[SADB_EXT_MAX + 1];
+};
+
+static struct secasvar *key_allocsa_policy __P((struct secasindex *));
+static void key_freesp_so __P((struct secpolicy **));
+static struct secasvar *key_do_allocsa_policy __P((struct secashead *, u_int));
+static void key_delsp __P((struct secpolicy *));
+static struct secpolicy *key_getsp __P((struct secpolicyindex *));
+static struct secpolicy *key_getspbyid __P((u_int32_t));
static u_int32_t key_newreqid __P((void));
-static struct sadb_msg *key_spdadd __P((caddr_t *mhp));
+static struct mbuf *key_gather_mbuf __P((struct mbuf *,
+ const struct sadb_msghdr *, int, int, int *));
+static int key_spdadd __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
static u_int32_t key_getnewspid __P((void));
-static struct sadb_msg *key_spddelete __P((caddr_t *mhp));
-static struct sadb_msg *key_spddelete2 __P((caddr_t *mhp));
-static int key_spdget __P((caddr_t *mhp, struct socket *so, int target));
-static struct sadb_msg *key_spdflush __P((caddr_t *mhp));
-static int key_spddump __P((caddr_t *mhp, struct socket *so, int target));
-static struct mbuf *key_setdumpsp __P((struct secpolicy *sp,
- u_int8_t type, u_int32_t seq, u_int32_t pid));
-static u_int key_getspmsglen __P((struct secpolicy *sp));
-static u_int key_getspreqmsglen __P((struct secpolicy *sp));
-static struct secashead *key_newsah __P((struct secasindex *saidx));
-static void key_delsah __P((struct secashead *sah));
-static struct secasvar *key_newsav __P((caddr_t *mhp, struct secashead *sah));
-static void key_delsav __P((struct secasvar *sav));
-static struct secashead *key_getsah __P((struct secasindex *saidx));
-static struct secasvar *key_checkspidup __P((struct secasindex *saidx,
- u_int32_t spi));
-static struct secasvar *key_getsavbyspi __P((struct secashead *sah,
- u_int32_t spi));
-static int key_setsaval __P((struct secasvar *sav, caddr_t *mhp));
-static u_int key_getmsglen __P((struct secasvar *sav));
-static int key_mature __P((struct secasvar *sav));
-static u_int key_setdumpsa __P((struct sadb_msg *newmsg, struct secasvar *sav,
- u_int8_t type, u_int8_t satype,
- u_int32_t seq, u_int32_t pid));
-#if 1
-static int key_setsadbmsg_m __P((struct mbuf *, u_int8_t type, int tlen,
- u_int8_t satype, u_int32_t seq, pid_t pid,
- u_int8_t mode, u_int32_t reqid,
- u_int8_t reserved1, u_int32_t reserved2));
-#endif
-static caddr_t key_setsadbmsg __P((caddr_t buf, u_int8_t type, int tlen,
- u_int8_t satype, u_int32_t seq, pid_t pid,
- u_int8_t mode, u_int32_t reqid,
- u_int8_t reserved1, u_int32_t reserved2));
-static caddr_t key_setsadbsa __P((caddr_t buf, struct secasvar *sav));
-#if 1
-static int key_setsadbaddr_m __P((struct mbuf *m, u_int16_t exttype,
- struct sockaddr *saddr, u_int8_t prefixlen, u_int16_t ul_proto));
+static int key_spddelete __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_spddelete2 __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_spdget __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_spdflush __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_spddump __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static struct mbuf *key_setdumpsp __P((struct secpolicy *,
+ u_int8_t, u_int32_t, u_int32_t));
+static u_int key_getspreqmsglen __P((struct secpolicy *));
+static int key_spdexpire __P((struct secpolicy *));
+static struct secashead *key_newsah __P((struct secasindex *));
+static void key_delsah __P((struct secashead *));
+static struct secasvar *key_newsav __P((struct mbuf *,
+ const struct sadb_msghdr *, struct secashead *, int *));
+static void key_delsav __P((struct secasvar *));
+static struct secashead *key_getsah __P((struct secasindex *));
+static struct secasvar *key_checkspidup __P((struct secasindex *, u_int32_t));
+static struct secasvar *key_getsavbyspi __P((struct secashead *, u_int32_t));
+static int key_setsaval __P((struct secasvar *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_mature __P((struct secasvar *));
+static struct mbuf *key_setdumpsa __P((struct secasvar *, u_int8_t,
+ u_int8_t, u_int32_t, u_int32_t));
+static struct mbuf *key_setsadbmsg __P((u_int8_t, u_int16_t, u_int8_t,
+ u_int32_t, pid_t, u_int16_t));
+static struct mbuf *key_setsadbsa __P((struct secasvar *));
+static struct mbuf *key_setsadbaddr __P((u_int16_t,
+ struct sockaddr *, u_int8_t, u_int16_t));
+#if 0
+static struct mbuf *key_setsadbident __P((u_int16_t, u_int16_t, caddr_t,
+ int, u_int64_t));
#endif
-static caddr_t key_setsadbaddr __P((caddr_t buf, u_int16_t exttype,
- struct sockaddr *saddr, u_int8_t prefixlen, u_int16_t ul_proto));
-static caddr_t key_setsadbident
- __P((caddr_t buf, u_int16_t exttype, u_int16_t idtype,
- caddr_t string, int stringlen, u_int64_t id));
-static caddr_t key_setsadbxpolicy
- __P((caddr_t buf, u_int16_t type, u_int8_t dir, u_int32_t id));
-static caddr_t key_setsadbext __P((caddr_t p, caddr_t ext));
-static void *key_newbuf __P((void *src, u_int len));
+static struct mbuf *key_setsadbxsa2 __P((u_int8_t, u_int32_t, u_int32_t));
+static struct mbuf *key_setsadbxpolicy __P((u_int16_t, u_int8_t,
+ u_int32_t));
+static void *key_newbuf __P((const void *, u_int));
#if INET6
-static int key_ismyaddr6 __P((caddr_t addr));
-#endif
-#if 0
-static int key_isloopback __P((u_int family, caddr_t addr));
+static int key_ismyaddr6 __P((struct sockaddr_in6 *));
#endif
-static int key_cmpsaidx_exactly
- __P((struct secasindex *saidx0, struct secasindex *saidx1));
-static int key_cmpsaidx_withmode
- __P((struct secasindex *saidx0, struct secasindex *saidx1));
+
+/* flags for key_cmpsaidx() */
+#define CMP_HEAD 1 /* protocol, addresses. */
+#define CMP_MODE_REQID 2 /* additionally HEAD, reqid, mode. */
+#define CMP_REQID 3 /* additionally HEAD, reaid. */
+#define CMP_EXACTLY 4 /* all elements. */
+static int key_cmpsaidx
+ __P((struct secasindex *, struct secasindex *, int));
+
static int key_cmpspidx_exactly
- __P((struct secpolicyindex *spidx0, struct secpolicyindex *spidx1));
+ __P((struct secpolicyindex *, struct secpolicyindex *));
static int key_cmpspidx_withmask
- __P((struct secpolicyindex *spidx0, struct secpolicyindex *spidx1));
-static int key_bbcmp __P((caddr_t p1, caddr_t p2, u_int bits));
-static u_int16_t key_satype2proto __P((u_int8_t satype));
-static u_int8_t key_proto2satype __P((u_int16_t proto));
-
-static struct sadb_msg *key_getspi __P((caddr_t *mhp));
-static u_int32_t key_do_getnewspi __P((struct sadb_spirange *spirange,
- struct secasindex *saidx));
-static struct sadb_msg *key_update __P((caddr_t *mhp));
-#ifdef IPSEC_DOSEQCHECK
-static struct secasvar *key_getsavbyseq __P((struct secashead *sah,
- u_int32_t seq));
+ __P((struct secpolicyindex *, struct secpolicyindex *));
+static int key_sockaddrcmp __P((struct sockaddr *, struct sockaddr *, int));
+static int key_bbcmp __P((caddr_t, caddr_t, u_int));
+static void key_srandom __P((void));
+static u_int16_t key_satype2proto __P((u_int8_t));
+static u_int8_t key_proto2satype __P((u_int16_t));
+
+static int key_getspi __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static u_int32_t key_do_getnewspi __P((struct sadb_spirange *,
+ struct secasindex *));
+static int key_update __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+#if IPSEC_DOSEQCHECK
+static struct secasvar *key_getsavbyseq __P((struct secashead *, u_int32_t));
+#endif
+static int key_add __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_setident __P((struct secashead *, struct mbuf *,
+ const struct sadb_msghdr *));
+static struct mbuf *key_getmsgbuf_x1 __P((struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_delete __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_get __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+
+static void key_getcomb_setlifetime __P((struct sadb_comb *));
+#if IPSEC_ESP
+static struct mbuf *key_getcomb_esp __P((void));
#endif
-static struct sadb_msg *key_add __P((caddr_t *mhp));
-static int key_setident __P((struct secashead *sah, caddr_t *mhp));
-static struct sadb_msg *key_getmsgbuf_x1 __P((caddr_t *mhp));
-static struct sadb_msg *key_delete __P((caddr_t *mhp));
-static struct sadb_msg *key_get __P((caddr_t *mhp));
+static struct mbuf *key_getcomb_ah __P((void));
+static struct mbuf *key_getcomb_ipcomp __P((void));
+static struct mbuf *key_getprop __P((const struct secasindex *));
+
static int key_acquire __P((struct secasindex *, struct secpolicy *));
-static struct secacq *key_newacq __P((struct secasindex *saidx));
-static struct secacq *key_getacq __P((struct secasindex *saidx));
-static struct secacq *key_getacqbyseq __P((u_int32_t seq));
-static struct secspacq *key_newspacq __P((struct secpolicyindex *spidx));
-static struct secspacq *key_getspacq __P((struct secpolicyindex *spidx));
-static struct sadb_msg *key_acquire2 __P((caddr_t *mhp));
-static struct sadb_msg *key_register __P((caddr_t *mhp, struct socket *so));
-static int key_expire __P((struct secasvar *sav));
-static struct sadb_msg *key_flush __P((caddr_t *mhp));
-static int key_dump __P((caddr_t *mhp, struct socket *so, int target));
-static void key_promisc __P((caddr_t *mhp, struct socket *so));
-static int key_sendall __P((struct sadb_msg *msg, u_int len));
-static int key_align __P((struct sadb_msg *msg, caddr_t *mhp));
+#ifndef IPSEC_NONBLOCK_ACQUIRE
+static struct secacq *key_newacq __P((struct secasindex *));
+static struct secacq *key_getacq __P((struct secasindex *));
+static struct secacq *key_getacqbyseq __P((u_int32_t));
+#endif
+static struct secspacq *key_newspacq __P((struct secpolicyindex *));
+static struct secspacq *key_getspacq __P((struct secpolicyindex *));
+static int key_acquire2 __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_register __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_expire __P((struct secasvar *));
+static int key_flush __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_dump __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_promisc __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *));
+static int key_senderror __P((struct socket *, struct mbuf *, int));
+static int key_validate_ext __P((const struct sadb_ext *, int));
+static int key_align __P((struct mbuf *, struct sadb_msghdr *));
#if 0
static const char *key_getfqdn __P((void));
static const char *key_getuserfqdn __P((void));
#endif
-static void key_sa_chgstate __P((struct secasvar *sav, u_int8_t state));
-static caddr_t key_appendmbuf __P((struct mbuf *, int));
+static void key_sa_chgstate __P((struct secasvar *, u_int8_t));
+static struct mbuf *key_alloc_mbuf __P((int));
+
+extern int ipsec_bypass;
+void ipsec_send_natt_keepalive(struct secasvar *sav);
/* %%% IPsec policy management */
/*
u_int dir;
{
struct secpolicy *sp;
+ struct timeval tv;
int s;
/* sanity check */
}
/* get a SP entry */
-#ifdef __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
KEYDEBUG(KEYDEBUG_IPSEC_DATA,
printf("*** objects\n");
kdebug_secpolicyindex(spidx));
KEY_CHKSPDIR(sp->spidx.dir, dir, "key_allocsp");
/* found a SPD entry */
+ microtime(&tv);
+ sp->lastused = tv.tv_sec;
sp->refcnt++;
splx(s);
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
}
/*
- * allocating a SA entry for a *OUTBOUND* packet.
- * checking each request entries in SP, and acquire SA if need.
+ * return a policy that matches this particular inbound packet.
+ * XXX slow
+ */
+struct secpolicy *
+key_gettunnel(osrc, odst, isrc, idst)
+ struct sockaddr *osrc, *odst, *isrc, *idst;
+{
+ struct secpolicy *sp;
+ const int dir = IPSEC_DIR_INBOUND;
+ struct timeval tv;
+ int s;
+ struct ipsecrequest *r1, *r2, *p;
+ struct sockaddr *os, *od, *is, *id;
+ struct secpolicyindex spidx;
+
+ if (isrc->sa_family != idst->sa_family) {
+ ipseclog((LOG_ERR, "protocol family mismatched %d != %d\n.",
+ isrc->sa_family, idst->sa_family));
+ return NULL;
+ }
+
+ s = splnet(); /*called from softclock()*/
+ LIST_FOREACH(sp, &sptree[dir], chain) {
+ if (sp->state == IPSEC_SPSTATE_DEAD)
+ continue;
+
+ r1 = r2 = NULL;
+ for (p = sp->req; p; p = p->next) {
+ if (p->saidx.mode != IPSEC_MODE_TUNNEL)
+ continue;
+
+ r1 = r2;
+ r2 = p;
+
+ if (!r1) {
+ /* here we look at address matches only */
+ spidx = sp->spidx;
+ if (isrc->sa_len > sizeof(spidx.src) ||
+ idst->sa_len > sizeof(spidx.dst))
+ continue;
+ bcopy(isrc, &spidx.src, isrc->sa_len);
+ bcopy(idst, &spidx.dst, idst->sa_len);
+ if (!key_cmpspidx_withmask(&sp->spidx, &spidx))
+ continue;
+ } else {
+ is = (struct sockaddr *)&r1->saidx.src;
+ id = (struct sockaddr *)&r1->saidx.dst;
+ if (key_sockaddrcmp(is, isrc, 0) ||
+ key_sockaddrcmp(id, idst, 0))
+ continue;
+ }
+
+ os = (struct sockaddr *)&r2->saidx.src;
+ od = (struct sockaddr *)&r2->saidx.dst;
+ if (key_sockaddrcmp(os, osrc, 0) ||
+ key_sockaddrcmp(od, odst, 0))
+ continue;
+
+ goto found;
+ }
+ }
+ splx(s);
+ return NULL;
+
+found:
+ microtime(&tv);
+ sp->lastused = tv.tv_sec;
+ sp->refcnt++;
+ splx(s);
+ return sp;
+}
+
+/*
+ * allocating an SA entry for an *OUTBOUND* packet.
+ * checking each request entries in SP, and acquire an SA if need.
* OUT: 0: there are valid requests.
* ENOENT: policy may be valid, but SA with REQUIRE is on acquiring.
*/
/* there is no SA */
if ((error = key_acquire(saidx, isr->sp)) != 0) {
- /* XXX What I do ? */
-#ifdef IPSEC_DEBUG
- printf("key_checkrequest: error %d returned "
- "from key_acquire.\n", error);
-#endif
+ /* XXX What should I do ? */
+ ipseclog((LOG_DEBUG, "key_checkrequest: error %d returned "
+ "from key_acquire.\n", error));
return error;
}
struct secashead *sah;
struct secasvar *sav;
u_int stateidx, state;
+ const u_int *saorder_state_valid;
+ int arraysize;
LIST_FOREACH(sah, &sahtree, chain) {
if (sah->state == SADB_SASTATE_DEAD)
continue;
- if (key_cmpsaidx_withmode(&sah->saidx, saidx))
+ if (key_cmpsaidx(&sah->saidx, saidx, CMP_MODE_REQID))
goto found;
}
found:
- /* search valid state */
- for (stateidx = 0;
- stateidx < _ARRAYLEN(saorder_state_valid);
- stateidx++) {
+ /*
+ * search a valid state list for outbound packet.
+ * This search order is important.
+ */
+ if (key_preferred_oldsa) {
+ saorder_state_valid = saorder_state_valid_prefer_old;
+ arraysize = _ARRAYLEN(saorder_state_valid_prefer_old);
+ } else {
+ saorder_state_valid = saorder_state_valid_prefer_new;
+ arraysize = _ARRAYLEN(saorder_state_valid_prefer_new);
+ }
+
+ for (stateidx = 0; stateidx < arraysize; stateidx++) {
state = saorder_state_valid[stateidx];
struct secashead *sah;
u_int state;
{
- struct secasvar *sav, *candidate;
+ struct secasvar *sav, *nextsav, *candidate, *d;
/* initilize */
candidate = NULL;
- LIST_FOREACH(sav, &sah->savtree[state], chain) {
+ for (sav = LIST_FIRST(&sah->savtree[state]);
+ sav != NULL;
+ sav = nextsav) {
+
+ nextsav = LIST_NEXT(sav, chain);
/* sanity check */
KEY_CHKSASTATE(sav->state, state, "key_do_allocsa_policy");
panic("key_do_allocsa_policy: "
"lifetime_current is NULL.\n");
- /* XXX What the best method is to compare ? */
- if (candidate->lft_c->sadb_lifetime_addtime >
+ /* What the best method is to compare ? */
+ if (key_preferred_oldsa) {
+ if (candidate->lft_c->sadb_lifetime_addtime >
+ sav->lft_c->sadb_lifetime_addtime) {
+ candidate = sav;
+ }
+ continue;
+ /*NOTREACHED*/
+ }
+
+ /* prefered new sa rather than old sa */
+ if (candidate->lft_c->sadb_lifetime_addtime <
sav->lft_c->sadb_lifetime_addtime) {
+ d = candidate;
candidate = sav;
- continue;
+ } else
+ d = sav;
+
+ /*
+ * prepared to delete the SA when there is more
+ * suitable candidate and the lifetime of the SA is not
+ * permanent.
+ */
+ if (d->lft_c->sadb_lifetime_addtime != 0) {
+ struct mbuf *m, *result;
+
+ key_sa_chgstate(d, SADB_SASTATE_DEAD);
+
+ m = key_setsadbmsg(SADB_DELETE, 0,
+ d->sah->saidx.proto, 0, 0, d->refcnt - 1);
+ if (!m)
+ goto msgfail;
+ result = m;
+
+ /* set sadb_address for saidx's. */
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&d->sah->saidx.src,
+ d->sah->saidx.src.ss_len << 3,
+ IPSEC_ULPROTO_ANY);
+ if (!m)
+ goto msgfail;
+ m_cat(result, m);
+
+ /* set sadb_address for saidx's. */
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&d->sah->saidx.src,
+ d->sah->saidx.src.ss_len << 3,
+ IPSEC_ULPROTO_ANY);
+ if (!m)
+ goto msgfail;
+ m_cat(result, m);
+
+ /* create SA extension */
+ m = key_setsadbsa(d);
+ if (!m)
+ goto msgfail;
+ m_cat(result, m);
+
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result,
+ sizeof(struct sadb_msg));
+ if (result == NULL)
+ goto msgfail;
+ }
+
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ if (key_sendup_mbuf(NULL, result,
+ KEY_SENDUP_REGISTERED))
+ goto msgfail;
+ msgfail:
+ key_freesav(d);
}
}
* of a Security Parameter Index (SPI), an IP Destination Address, and a
* security protocol (AH or ESP) identifier.
* Note that, however, we do need to keep source address in IPsec SA.
- * IPsec SA. IKE specification and PF_KEY specification do assume that we
+ * IKE specification and PF_KEY specification do assume that we
* keep source address in IPsec SA. We see a tricky situation here.
*/
struct secasvar *
struct secashead *sah;
struct secasvar *sav;
u_int stateidx, state;
+ struct sockaddr_in sin;
+ struct sockaddr_in6 sin6;
int s;
+ const u_int *saorder_state_valid;
+ int arraysize;
/* sanity check */
if (src == NULL || dst == NULL)
panic("key_allocsa: NULL pointer is passed.\n");
+ /*
+ * when both systems employ similar strategy to use a SA.
+ * the search order is important even in the inbound case.
+ */
+ if (key_preferred_oldsa) {
+ saorder_state_valid = saorder_state_valid_prefer_old;
+ arraysize = _ARRAYLEN(saorder_state_valid_prefer_old);
+ } else {
+ saorder_state_valid = saorder_state_valid_prefer_new;
+ arraysize = _ARRAYLEN(saorder_state_valid_prefer_new);
+ }
+
/*
* searching SAD.
* XXX: to be checked internal IP header somewhere. Also when
* IPsec tunnel packet is received. But ESP tunnel mode is
* encrypted so we can't check internal IP header.
*/
-#ifdef __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
LIST_FOREACH(sah, &sahtree, chain) {
-
- /* search valid state */
- for (stateidx = 0;
- stateidx < _ARRAYLEN(saorder_state_valid);
- stateidx++) {
-
+ /*
+ * search a valid state list for inbound packet.
+ * the search order is not important.
+ */
+ for (stateidx = 0; stateidx < arraysize; stateidx++) {
state = saorder_state_valid[stateidx];
LIST_FOREACH(sav, &sah->savtree[state], chain) {
-
/* sanity check */
KEY_CHKSASTATE(sav->state, state, "key_allocsav");
if (proto != sav->sah->saidx.proto)
continue;
if (spi != sav->spi)
continue;
+ if (family != sav->sah->saidx.src.ss_family ||
+ family != sav->sah->saidx.dst.ss_family)
+ continue;
#if 0 /* don't check src */
- if (!key_bbcmp(src,
- _INADDRBYSA(&sav->sah->saidx.src),
- _INALENBYAF(sav->sah->saidx.src.ss_family) << 3))
+ /* check src address */
+ switch (family) {
+ case AF_INET:
+ bzero(&sin, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_len = sizeof(sin);
+ bcopy(src, &sin.sin_addr,
+ sizeof(sin.sin_addr));
+ if (key_sockaddrcmp((struct sockaddr*)&sin,
+ (struct sockaddr *)&sav->sah->saidx.src, 0) != 0)
+ continue;
+
+ break;
+ case AF_INET6:
+ bzero(&sin6, sizeof(sin6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_len = sizeof(sin6);
+ bcopy(src, &sin6.sin6_addr,
+ sizeof(sin6.sin6_addr));
+ if (IN6_IS_SCOPE_LINKLOCAL(&sin6.sin6_addr)) {
+ /* kame fake scopeid */
+ sin6.sin6_scope_id =
+ ntohs(sin6.sin6_addr.s6_addr16[1]);
+ sin6.sin6_addr.s6_addr16[1] = 0;
+ }
+ if (key_sockaddrcmp((struct sockaddr*)&sin6,
+ (struct sockaddr *)&sav->sah->saidx.src, 0) != 0)
+ continue;
+ break;
+ default:
+ ipseclog((LOG_DEBUG, "key_allocsa: "
+ "unknown address family=%d.\n",
+ family));
continue;
+ }
+
#endif
- if (!key_bbcmp(dst,
- _INADDRBYSA(&sav->sah->saidx.dst),
- _INALENBYAF(sav->sah->saidx.dst.ss_family) << 3))
+ /* check dst address */
+ switch (family) {
+ case AF_INET:
+ bzero(&sin, sizeof(sin));
+ sin.sin_family = AF_INET;
+ sin.sin_len = sizeof(sin);
+ bcopy(dst, &sin.sin_addr,
+ sizeof(sin.sin_addr));
+ if (key_sockaddrcmp((struct sockaddr*)&sin,
+ (struct sockaddr *)&sav->sah->saidx.dst, 0) != 0)
+ continue;
+
+ break;
+ case AF_INET6:
+ bzero(&sin6, sizeof(sin6));
+ sin6.sin6_family = AF_INET6;
+ sin6.sin6_len = sizeof(sin6);
+ bcopy(dst, &sin6.sin6_addr,
+ sizeof(sin6.sin6_addr));
+ if (IN6_IS_SCOPE_LINKLOCAL(&sin6.sin6_addr)) {
+ /* kame fake scopeid */
+ sin6.sin6_scope_id =
+ ntohs(sin6.sin6_addr.s6_addr16[1]);
+ sin6.sin6_addr.s6_addr16[1] = 0;
+ }
+ if (key_sockaddrcmp((struct sockaddr*)&sin6,
+ (struct sockaddr *)&sav->sah->saidx.dst, 0) != 0)
+ continue;
+ break;
+ default:
+ ipseclog((LOG_DEBUG, "key_allocsa: "
+ "unknown address family=%d.\n",
+ family));
continue;
+ }
goto found;
}
struct inpcb *pcb = sotoinpcb(so);
/* Does it have a PCB ? */
- if (pcb == NULL)
+ if (pcb == NULL || pcb->inp_sp == NULL)
return;
key_freesp_so(&pcb->inp_sp->sp_in);
key_freesp_so(&pcb->inp_sp->sp_out);
struct inpcb *pcb = sotoinpcb(so);
/* Does it have a PCB ? */
- if (pcb == NULL)
+ if (pcb == NULL || pcb->inp_sp == NULL)
return;
key_freesp_so(&pcb->inp_sp->sp_in);
key_freesp_so(&pcb->inp_sp->sp_out);
struct in6pcb *pcb = sotoin6pcb(so);
/* Does it have a PCB ? */
- if (pcb == NULL)
+ if (pcb == NULL || pcb->in6p_sp == NULL)
return;
key_freesp_so(&pcb->in6p_sp->sp_in);
key_freesp_so(&pcb->in6p_sp->sp_out);
break;
#endif /* INET6 */
default:
-#if IPSEC_DEBUG
- printf("key_freeso: unknown address family=%d.\n",
- so->so_proto->pr_domain->dom_family);
-#endif
+ ipseclog((LOG_DEBUG, "key_freeso: unknown address family=%d.\n",
+ so->so_proto->pr_domain->dom_family));
return;
}
sav->refcnt--;
KEYDEBUG(KEYDEBUG_IPSEC_STAMP,
- printf("DP freesav cause refcnt--:%d SA:%p SPI %d\n",
+ printf("DP freesav cause refcnt--:%d SA:%p SPI %u\n",
sav->refcnt, sav, (u_int32_t)ntohl(sav->spi)));
if (sav->refcnt == 0)
if (sp->refcnt > 0)
return; /* can't free */
-#if __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
/* remove from SP index */
if (__LIST_CHAINED(sp))
LIST_REMOVE(sp, chain);
if (len < sizeof(*xpl0))
panic("key_msg2sp: invalid length.\n");
if (len != PFKEY_EXTLEN(xpl0)) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: Invalid msg length.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: Invalid msg length.\n"));
*error = EINVAL;
return NULL;
}
/* validity check */
if (PFKEY_EXTLEN(xpl0) < sizeof(*xpl0)) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: Invalid msg length.\n");
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_msg2sp: Invalid msg length.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
/* length check */
if (xisr->sadb_x_ipsecrequest_len < sizeof(*xisr)) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: "
- "invalid ipsecrequest length.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: "
+ "invalid ipsecrequest length.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
/* allocate request buffer */
KMALLOC(*p_isr, struct ipsecrequest *, sizeof(**p_isr));
if ((*p_isr) == NULL) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_msg2sp: No more memory.\n"));
key_freesp(newsp);
*error = ENOBUFS;
return NULL;
switch (xisr->sadb_x_ipsecrequest_proto) {
case IPPROTO_ESP:
case IPPROTO_AH:
-#if 1 /*nonstandard*/
case IPPROTO_IPCOMP:
-#endif
break;
default:
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid proto type=%u\n",
- xisr->sadb_x_ipsecrequest_proto);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_msg2sp: invalid proto type=%u\n",
+ xisr->sadb_x_ipsecrequest_proto));
key_freesp(newsp);
*error = EPROTONOSUPPORT;
return NULL;
break;
case IPSEC_MODE_ANY:
default:
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid mode=%u\n",
- xisr->sadb_x_ipsecrequest_mode);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_msg2sp: invalid mode=%u\n",
+ xisr->sadb_x_ipsecrequest_mode));
key_freesp(newsp);
*error = EINVAL;
return NULL;
*/
if (xisr->sadb_x_ipsecrequest_reqid
> IPSEC_MANUAL_REQID_MAX) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: reqid=%d "
- "range violation, "
- "updated by kernel.\n",
- xisr->sadb_x_ipsecrequest_reqid);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_msg2sp: reqid=%d range "
+ "violation, updated by kernel.\n",
+ xisr->sadb_x_ipsecrequest_reqid));
xisr->sadb_x_ipsecrequest_reqid = 0;
}
break;
default:
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid level=%u\n",
- xisr->sadb_x_ipsecrequest_level);
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: invalid level=%u\n",
+ xisr->sadb_x_ipsecrequest_level));
key_freesp(newsp);
*error = EINVAL;
return NULL;
/* validity check */
if (paddr->sa_len
> sizeof((*p_isr)->saidx.src)) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid request "
- "address length.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: invalid request "
+ "address length.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
/* validity check */
if (paddr->sa_len
> sizeof((*p_isr)->saidx.dst)) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid request "
- "address length.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: invalid request "
+ "address length.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
/* validity check */
if (tlen < 0) {
-#if IPSEC_DEBUG
- printf("key_msg2sp: becoming tlen < 0.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: becoming tlen < 0.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
}
break;
default:
-#if IPSEC_DEBUG
- printf("key_msg2sp: invalid policy type.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_msg2sp: invalid policy type.\n"));
key_freesp(newsp);
*error = EINVAL;
return NULL;
tlen = key_getspreqmsglen(sp);
- MGET(m, M_DONTWAIT, MT_DATA);
- if (m && MLEN < tlen) {
- MCLGET(m, M_DONTWAIT);
- if ((m->m_flags & M_EXT) == 0) {
- m_free(m);
- m = NULL;
- }
- }
- m->m_len = 0;
- if (!m || M_TRAILINGSPACE(m) < tlen) {
-#if IPSEC_DEBUG
- printf("key_sp2msg: No more memory.\n");
-#endif
+ m = key_alloc_mbuf(tlen);
+ if (!m || m->m_next) { /*XXX*/
if (m)
- m_free(m);
+ m_freem(m);
return NULL;
}
return m;
}
+/* m will not be freed nor modified */
+static struct mbuf *
+key_gather_mbuf(struct mbuf *m, const struct sadb_msghdr *mhp,
+ int ndeep, int nitem, int *items)
+{
+ int idx;
+ int i;
+ struct mbuf *result = NULL, *n;
+ int len;
+
+ if (m == NULL || mhp == NULL)
+ panic("null pointer passed to key_gather");
+
+ for (i = 0; i < nitem; i++) {
+ idx = items[i];
+ if (idx < 0 || idx > SADB_EXT_MAX)
+ goto fail;
+ /* don't attempt to pull empty extension */
+ if (idx == SADB_EXT_RESERVED && mhp->msg == NULL)
+ continue;
+ if (idx != SADB_EXT_RESERVED &&
+ (mhp->ext[idx] == NULL || mhp->extlen[idx] == 0))
+ continue;
+
+ if (idx == SADB_EXT_RESERVED) {
+ len = PFKEY_ALIGN8(sizeof(struct sadb_msg));
+#if DIAGNOSTIC
+ if (len > MHLEN)
+ panic("assumption failed");
+#endif
+ MGETHDR(n, M_DONTWAIT, MT_DATA);
+ if (!n)
+ goto fail;
+ n->m_len = len;
+ n->m_next = NULL;
+ m_copydata(m, 0, sizeof(struct sadb_msg),
+ mtod(n, caddr_t));
+ } else if (i < ndeep) {
+ len = mhp->extlen[idx];
+ n = key_alloc_mbuf(len);
+ if (!n || n->m_next) { /*XXX*/
+ if (n)
+ m_freem(n);
+ goto fail;
+ }
+ m_copydata(m, mhp->extoff[idx], mhp->extlen[idx],
+ mtod(n, caddr_t));
+ } else {
+ n = m_copym(m, mhp->extoff[idx], mhp->extlen[idx],
+ M_DONTWAIT);
+ }
+ if (n == NULL)
+ goto fail;
+
+ if (result)
+ m_cat(result, n);
+ else
+ result = n;
+ }
+
+ if ((result->m_flags & M_PKTHDR) != 0) {
+ result->m_pkthdr.len = 0;
+ for (n = result; n; n = n->m_next)
+ result->m_pkthdr.len += n->m_len;
+ }
+
+ return result;
+
+fail:
+ m_freem(result);
+ return NULL;
+}
+
/*
* SADB_X_SPDADD, SADB_X_SPDSETIDX or SADB_X_SPDUPDATE processing
* add a entry to SP database, when received
- * <base, address(SD), policy>
+ * <base, address(SD), (lifetime(H),) policy>
* from the user(?).
* Adding to SP database,
* and send
- * <base, address(SD), policy>
+ * <base, address(SD), (lifetime(H),) policy>
* to the socket which was send.
*
* SPDADD set a unique policy entry.
* SPDSETIDX like SPDADD without a part of policy requests.
* SPDUPDATE replace a unique policy entry.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
- *
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_spdadd(mhp)
- caddr_t *mhp;
+static int
+key_spdadd(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_address *src0, *dst0;
- struct sadb_x_policy *xpl0;
+ struct sadb_x_policy *xpl0, *xpl;
+ struct sadb_lifetime *lft = NULL;
struct secpolicyindex spidx;
struct secpolicy *newsp;
+ struct timeval tv;
int error;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spdadd: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
- if (mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL
- || mhp[SADB_X_EXT_POLICY] == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdadd: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL ||
+ mhp->ext[SADB_X_EXT_POLICY] == NULL) {
+ ipseclog((LOG_DEBUG, "key_spdadd: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_X_EXT_POLICY] < sizeof(struct sadb_x_policy)) {
+ ipseclog((LOG_DEBUG, "key_spdadd: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->ext[SADB_EXT_LIFETIME_HARD] != NULL) {
+ if (mhp->extlen[SADB_EXT_LIFETIME_HARD]
+ < sizeof(struct sadb_lifetime)) {
+ ipseclog((LOG_DEBUG, "key_spdadd: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ lft = (struct sadb_lifetime *)mhp->ext[SADB_EXT_LIFETIME_HARD];
}
- src0 = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_SRC];
- dst0 = (struct sadb_address *)mhp[SADB_EXT_ADDRESS_DST];
- xpl0 = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
+ src0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_SRC];
+ dst0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_DST];
+ xpl0 = (struct sadb_x_policy *)mhp->ext[SADB_X_EXT_POLICY];
/* make secindex */
+ /* XXX boundary check against sa_len */
KEY_SETSECSPIDX(xpl0->sadb_x_policy_dir,
src0 + 1,
dst0 + 1,
case IPSEC_DIR_OUTBOUND:
break;
default:
-#if IPSEC_DEBUG
- printf("key_spdadd: Invalid SP direction.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spdadd: Invalid SP direction.\n"));
+ mhp->msg->sadb_msg_errno = EINVAL;
+ return 0;
}
/* check policy */
/* key_spdadd() accepts DISCARD, NONE and IPSEC. */
if (xpl0->sadb_x_policy_type == IPSEC_POLICY_ENTRUST
|| xpl0->sadb_x_policy_type == IPSEC_POLICY_BYPASS) {
-#if IPSEC_DEBUG
- printf("key_spdadd: Invalid policy type.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spdadd: Invalid policy type.\n"));
+ return key_senderror(so, m, EINVAL);
}
/* policy requests are mandatory when action is ipsec. */
- if (msg0->sadb_msg_type != SADB_X_SPDSETIDX
+ if (mhp->msg->sadb_msg_type != SADB_X_SPDSETIDX
&& xpl0->sadb_x_policy_type == IPSEC_POLICY_IPSEC
- && PFKEY_EXTLEN(xpl0) <= sizeof(*xpl0)) {
-#if IPSEC_DEBUG
- printf("key_spdadd: some policy requests part required.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ && mhp->extlen[SADB_X_EXT_POLICY] <= sizeof(*xpl0)) {
+ ipseclog((LOG_DEBUG, "key_spdadd: some policy requests part required.\n"));
+ return key_senderror(so, m, EINVAL);
}
/*
* checking there is SP already or not.
- * If type is SPDUPDATE and no SP found, then error.
- * If type is either SPDADD or SPDSETIDX and SP found, then error.
+ * SPDUPDATE doesn't depend on whether there is a SP or not.
+ * If the type is either SPDADD or SPDSETIDX AND a SP is found,
+ * then error.
*/
newsp = key_getsp(&spidx);
- if (msg0->sadb_msg_type == SADB_X_SPDUPDATE) {
- if (newsp == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdadd: no SP found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ if (mhp->msg->sadb_msg_type == SADB_X_SPDUPDATE) {
+ if (newsp) {
+ newsp->state = IPSEC_SPSTATE_DEAD;
+ key_freesp(newsp);
}
-
- newsp->state = IPSEC_SPSTATE_DEAD;
- key_freesp(newsp);
} else {
if (newsp != NULL) {
key_freesp(newsp);
-#if IPSEC_DEBUG
- printf("key_spdadd: a SP entry exists already.\n");
-#endif
- msg0->sadb_msg_errno = EEXIST;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spdadd: a SP entry exists already.\n"));
+ return key_senderror(so, m, EEXIST);
}
}
/* allocation new SP entry */
if ((newsp = key_msg2sp(xpl0, PFKEY_EXTLEN(xpl0), &error)) == NULL) {
- msg0->sadb_msg_errno = error;
- return NULL;
+ return key_senderror(so, m, error);
}
if ((newsp->id = key_getnewspid()) == 0) {
- msg0->sadb_msg_errno = ENOBUFS;
keydb_delsecpolicy(newsp);
- return NULL;
+ return key_senderror(so, m, ENOBUFS);
}
+ /* XXX boundary check against sa_len */
KEY_SETSECSPIDX(xpl0->sadb_x_policy_dir,
src0 + 1,
dst0 + 1,
/* sanity check on addr pair */
if (((struct sockaddr *)(src0 + 1))->sa_family !=
((struct sockaddr *)(dst0+ 1))->sa_family) {
- msg0->sadb_msg_errno = EINVAL;
keydb_delsecpolicy(newsp);
- return NULL;
+ return key_senderror(so, m, EINVAL);
+ }
+ if (((struct sockaddr *)(src0 + 1))->sa_len !=
+ ((struct sockaddr *)(dst0+ 1))->sa_len) {
+ keydb_delsecpolicy(newsp);
+ return key_senderror(so, m, EINVAL);
}
#if 1
if (newsp->req && newsp->req->saidx.src.ss_family) {
struct sockaddr *sa;
sa = (struct sockaddr *)(src0 + 1);
if (sa->sa_family != newsp->req->saidx.src.ss_family) {
- msg0->sadb_msg_errno = EINVAL;
keydb_delsecpolicy(newsp);
- return NULL;
+ return key_senderror(so, m, EINVAL);
}
}
if (newsp->req && newsp->req->saidx.dst.ss_family) {
struct sockaddr *sa;
sa = (struct sockaddr *)(dst0 + 1);
if (sa->sa_family != newsp->req->saidx.dst.ss_family) {
- msg0->sadb_msg_errno = EINVAL;
keydb_delsecpolicy(newsp);
- return NULL;
+ return key_senderror(so, m, EINVAL);
}
}
#endif
+ microtime(&tv);
+ newsp->created = tv.tv_sec;
+ newsp->lastused = tv.tv_sec;
+ newsp->lifetime = lft ? lft->sadb_lifetime_addtime : 0;
+ newsp->validtime = lft ? lft->sadb_lifetime_usetime : 0;
+
newsp->refcnt = 1; /* do not reclaim until I say I do */
newsp->state = IPSEC_SPSTATE_ALIVE;
- LIST_INSERT_HEAD(&sptree[newsp->spidx.dir], newsp, chain);
+ LIST_INSERT_TAIL(&sptree[newsp->spidx.dir], newsp, secpolicy, chain);
+
+ /* Turn off the ipsec bypass */
+ if (ipsec_bypass != 0)
+ ipsec_bypass = 0;
/* delete the entry in spacqtree */
- if (msg0->sadb_msg_type == SADB_X_SPDUPDATE) {
+ if (mhp->msg->sadb_msg_type == SADB_X_SPDUPDATE) {
struct secspacq *spacq;
if ((spacq = key_getspacq(&spidx)) != NULL) {
- /* reset counter in order to deletion by timehander. */
- spacq->tick = key_blockacq_lifetime;
+ /* reset counter in order to deletion by timehandler. */
+ microtime(&tv);
+ spacq->created = tv.tv_sec;
spacq->count = 0;
}
}
{
+ struct mbuf *n, *mpolicy;
struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ int off;
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + PFKEY_EXTLEN(mhp[SADB_X_EXT_POLICY])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_SRC])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_DST]);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdadd: No more memory.\n");
-#endif
- /* newsp persists in the kernel */
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ if (lft) {
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_X_EXT_POLICY,
+ SADB_EXT_LIFETIME_HARD, SADB_EXT_ADDRESS_SRC,
+ SADB_EXT_ADDRESS_DST};
+ n = key_gather_mbuf(m, mhp, 2, sizeof(mbufItems)/sizeof(int), mbufItems);
+ } else {
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_X_EXT_POLICY,
+ SADB_EXT_ADDRESS_SRC, SADB_EXT_ADDRESS_DST};
+ n = key_gather_mbuf(m, mhp, 2, sizeof(mbufItems)/sizeof(int), mbufItems);
}
- bzero((caddr_t)newmsg, len);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- bcopy((caddr_t)msg0, (caddr_t)newmsg, sizeof(*msg0));
+ if (n->m_len < sizeof(*newmsg)) {
+ n = m_pullup(n, sizeof(*newmsg));
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
+ }
+ newmsg = mtod(n, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
-
- /*
- * reqid may had been updated at key_msg2sp() if reqid's
- * range violation.
- */
- ((struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY])->sadb_x_policy_id = newsp->id;
- p = key_setsadbext(p, mhp[SADB_X_EXT_POLICY]);
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_SRC]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_DST]);
+ off = 0;
+ mpolicy = m_pulldown(n, PFKEY_ALIGN8(sizeof(struct sadb_msg)),
+ sizeof(*xpl), &off);
+ if (mpolicy == NULL) {
+ /* n is already freed */
+ return key_senderror(so, m, ENOBUFS);
+ }
+ xpl = (struct sadb_x_policy *)(mtod(mpolicy, caddr_t) + off);
+ if (xpl->sadb_x_policy_exttype != SADB_X_EXT_POLICY) {
+ m_freem(n);
+ return key_senderror(so, m, EINVAL);
+ }
+ xpl->sadb_x_policy_id = newsp->id;
- return newmsg;
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
/* when requesting to allocate spi ranged */
while (count--) {
- newid = (policy_id = (policy_id == ~0 ? 1 : ++policy_id));
+ newid = (policy_id = (policy_id == ~0 ? 1 : policy_id + 1));
if ((sp = key_getspbyid(newid)) == NULL)
break;
}
if (count == 0 || newid == 0) {
-#if IPSEC_DEBUG
- printf("key_getnewspid: to allocate policy id is failed.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_getnewspid: to allocate policy id is failed.\n"));
return 0;
}
* to the ikmpd.
* policy(*) including direction of policy.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: other if success, return pointer to the message to send.
- * 0 if fail.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_spddelete(mhp)
- caddr_t *mhp;
+static int
+key_spddelete(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_address *src0, *dst0;
struct sadb_x_policy *xpl0;
struct secpolicyindex spidx;
struct secpolicy *sp;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spddelete: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
- if (mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL
- || mhp[SADB_X_EXT_POLICY] == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL ||
+ mhp->ext[SADB_X_EXT_POLICY] == NULL) {
+ ipseclog((LOG_DEBUG, "key_spddelete: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_X_EXT_POLICY] < sizeof(struct sadb_x_policy)) {
+ ipseclog((LOG_DEBUG, "key_spddelete: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
- xpl0 = (struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY];
+ src0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_SRC];
+ dst0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_DST];
+ xpl0 = (struct sadb_x_policy *)mhp->ext[SADB_X_EXT_POLICY];
/* make secindex */
+ /* XXX boundary check against sa_len */
KEY_SETSECSPIDX(xpl0->sadb_x_policy_dir,
src0 + 1,
dst0 + 1,
case IPSEC_DIR_OUTBOUND:
break;
default:
-#if IPSEC_DEBUG
- printf("key_spddelete: Invalid SP direction.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spddelete: Invalid SP direction.\n"));
+ return key_senderror(so, m, EINVAL);
}
/* Is there SP in SPD ? */
if ((sp = key_getsp(&spidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete: no SP found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spddelete: no SP found.\n"));
+ return key_senderror(so, m, EINVAL);
}
/* save policy id to buffer to be returned. */
key_freesp(sp);
{
+ struct mbuf *n;
struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_X_EXT_POLICY,
+ SADB_EXT_ADDRESS_SRC, SADB_EXT_ADDRESS_DST};
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + PFKEY_EXTLEN(mhp[SADB_X_EXT_POLICY])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_SRC])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_DST]);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
- }
- bzero((caddr_t)newmsg, len);
+ n = key_gather_mbuf(m, mhp, 1, sizeof(mbufItems)/sizeof(int), mbufItems);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
+ newmsg = mtod(n, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
-
- p = key_setsadbext(p, mhp[SADB_X_EXT_POLICY]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_SRC]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_DST]);
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
- return newmsg;
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
* to the ikmpd.
* policy(*) including direction of policy.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: other if success, return pointer to the message to send.
- * 0 if fail.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_spddelete2(mhp)
- caddr_t *mhp;
+static int
+key_spddelete2(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
u_int32_t id;
struct secpolicy *sp;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spddelete2: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
- if (mhp[SADB_X_EXT_POLICY] == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete2: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_X_EXT_POLICY] == NULL ||
+ mhp->extlen[SADB_X_EXT_POLICY] < sizeof(struct sadb_x_policy)) {
+ ipseclog((LOG_DEBUG, "key_spddelete2: invalid message is passed.\n"));
+ key_senderror(so, m, EINVAL);
+ return 0;
}
- id = ((struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY])->sadb_x_policy_id;
+ id = ((struct sadb_x_policy *)mhp->ext[SADB_X_EXT_POLICY])->sadb_x_policy_id;
/* Is there SP in SPD ? */
if ((sp = key_getspbyid(id)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete2: no SP found id:%u.\n", id);
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_spddelete2: no SP found id:%u.\n", id));
+ key_senderror(so, m, EINVAL);
}
sp->state = IPSEC_SPSTATE_DEAD;
key_freesp(sp);
{
+ struct mbuf *n, *nn;
struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ int off, len;
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + PFKEY_EXTLEN(mhp[SADB_X_EXT_POLICY]);
+ len = PFKEY_ALIGN8(sizeof(struct sadb_msg));
+
+ if (len > MCLBYTES)
+ return key_senderror(so, m, ENOBUFS);
+ MGETHDR(n, M_DONTWAIT, MT_DATA);
+ if (n && len > MHLEN) {
+ MCLGET(n, M_DONTWAIT);
+ if ((n->m_flags & M_EXT) == 0) {
+ m_freem(n);
+ n = NULL;
+ }
+ }
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_spddelete2: No more memory.\n");
+ n->m_len = len;
+ n->m_next = NULL;
+ off = 0;
+
+ m_copydata(m, 0, sizeof(struct sadb_msg), mtod(n, caddr_t) + off);
+ off += PFKEY_ALIGN8(sizeof(struct sadb_msg));
+
+#if DIAGNOSTIC
+ if (off != len)
+ panic("length inconsistency in key_spddelete2");
#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+
+ n->m_next = m_copym(m, mhp->extoff[SADB_X_EXT_POLICY],
+ mhp->extlen[SADB_X_EXT_POLICY], M_DONTWAIT);
+ if (!n->m_next) {
+ m_freem(n);
+ return key_senderror(so, m, ENOBUFS);
}
- bzero((caddr_t)newmsg, len);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
- newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
+ n->m_pkthdr.len = 0;
+ for (nn = n; nn; nn = nn->m_next)
+ n->m_pkthdr.len += nn->m_len;
- p = key_setsadbext(p, mhp[SADB_X_EXT_POLICY]);
+ newmsg = mtod(n, struct sadb_msg *);
+ newmsg->sadb_msg_errno = 0;
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
- return newmsg;
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
* to the ikmpd.
* policy(*) including direction of policy.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: other if success, return pointer to the message to send.
- * 0 if fail.
+ * m will always be freed.
*/
static int
-key_spdget(mhp, so, target)
- caddr_t *mhp;
+key_spdget(so, m, mhp)
struct socket *so;
- int target;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
u_int32_t id;
struct secpolicy *sp;
- struct mbuf *m;
+ struct mbuf *n;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spdget: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
- if (mhp[SADB_X_EXT_POLICY] == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdget: invalid message is passed.\n");
-#endif
- return EINVAL;
+ if (mhp->ext[SADB_X_EXT_POLICY] == NULL ||
+ mhp->extlen[SADB_X_EXT_POLICY] < sizeof(struct sadb_x_policy)) {
+ ipseclog((LOG_DEBUG, "key_spdget: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- id = ((struct sadb_x_policy *)mhp[SADB_X_EXT_POLICY])->sadb_x_policy_id;
+ id = ((struct sadb_x_policy *)mhp->ext[SADB_X_EXT_POLICY])->sadb_x_policy_id;
/* Is there SP in SPD ? */
if ((sp = key_getspbyid(id)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdget: no SP found id:%u.\n", id);
-#endif
- return ENOENT;
+ ipseclog((LOG_DEBUG, "key_spdget: no SP found id:%u.\n", id));
+ return key_senderror(so, m, ENOENT);
}
- m = key_setdumpsp(sp, SADB_X_SPDGET, 0, msg0->sadb_msg_pid);
- if (m != NULL)
- key_sendup_mbuf(so, m, target);
-
- return 0;
+ n = key_setdumpsp(sp, SADB_X_SPDGET, 0, mhp->msg->sadb_msg_pid);
+ if (n != NULL) {
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ONE);
+ } else
+ return key_senderror(so, m, ENOBUFS);
}
/*
key_spdacquire(sp)
struct secpolicy *sp;
{
+ struct mbuf *result = NULL, *m;
struct secspacq *newspacq;
int error;
LIST_INSERT_HEAD(&spacqtree, newspacq, chain);
}
- {
- struct sadb_msg *newmsg = NULL;
- union sadb_x_ident_id id;
- u_int len;
- caddr_t p;
-
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_ident)
- + PFKEY_ALIGN8(sp->spidx.src.ss_len)
- + sizeof(struct sadb_ident)
- + PFKEY_ALIGN8(sp->spidx.dst.ss_len);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == 0) {
-#if IPSEC_DEBUG
- printf("key_spdacquire: No more memory.\n");
-#endif
- return ENOBUFS;
+ m = key_setsadbmsg(SADB_X_SPDACQUIRE, 0, 0, 0, 0, 0);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
}
- bzero((caddr_t)newmsg, len);
+ result = m;
- newmsg->sadb_msg_version = PF_KEY_V2;
- newmsg->sadb_msg_type = SADB_X_SPDACQUIRE;
- newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_satype = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- newmsg->sadb_msg_mode = 0;
- newmsg->sadb_msg_reqid = 0;
- newmsg->sadb_msg_seq = 0;
- newmsg->sadb_msg_pid = 0;
- p = (caddr_t)newmsg + sizeof(struct sadb_msg);
-
- /* set sadb_address for spidx's. */
- bzero(&id, sizeof(id));
- id.sadb_x_ident_id_addr.prefix = sp->spidx.prefs;
- id.sadb_x_ident_id_addr.ul_proto = sp->spidx.ul_proto;
- p = key_setsadbident(p,
- SADB_EXT_IDENTITY_SRC,
- SADB_X_IDENTTYPE_ADDR,
- (caddr_t)&sp->spidx.src,
- sp->spidx.src.ss_len,
- *(u_int64_t *)&id);
-
- bzero(&id, sizeof(id));
- id.sadb_x_ident_id_addr.prefix = sp->spidx.prefd;
- id.sadb_x_ident_id_addr.ul_proto = sp->spidx.ul_proto;
- p = key_setsadbident(p,
- SADB_EXT_IDENTITY_DST,
- SADB_X_IDENTTYPE_ADDR,
- (caddr_t)&sp->spidx.dst,
- sp->spidx.dst.ss_len,
- *(u_int64_t *)&id);
-
- error = key_sendall(newmsg, len);
-#if IPSEC_DEBUG
- if (error != 0)
- printf("key_spdacquire: key_sendall returned %d\n", error);
-#endif
- return error;
- }
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
- return 0;
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ return key_sendup_mbuf(NULL, m, KEY_SENDUP_REGISTERED);
+
+fail:
+ if (result)
+ m_freem(result);
+ return error;
}
/*
* to the user.
* NOTE: what to do is only marking SADB_SASTATE_DEAD.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: other if success, return pointer to the message to send.
- * 0 if fail.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_spdflush(mhp)
- caddr_t *mhp;
+static int
+key_spdflush(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
+ struct sadb_msg *newmsg;
struct secpolicy *sp;
u_int dir;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spdflush: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
+ if (m->m_len != PFKEY_ALIGN8(sizeof(struct sadb_msg)))
+ return key_senderror(so, m, EINVAL);
for (dir = 0; dir < IPSEC_DIR_MAX; dir++) {
LIST_FOREACH(sp, &sptree[dir], chain) {
}
}
- {
- struct sadb_msg *newmsg;
- u_int len;
-
- /* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_spdflush: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ if (sizeof(struct sadb_msg) > m->m_len + M_TRAILINGSPACE(m)) {
+ ipseclog((LOG_DEBUG, "key_spdflush: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
- bzero((caddr_t)newmsg, len);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
+ if (m->m_next)
+ m_freem(m->m_next);
+ m->m_next = NULL;
+ m->m_pkthdr.len = m->m_len = PFKEY_ALIGN8(sizeof(struct sadb_msg));
+ newmsg = mtod(m, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
+ newmsg->sadb_msg_len = PFKEY_UNIT64(m->m_pkthdr.len);
- return(newmsg);
- }
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ALL);
}
/*
* <base> .....
* to the ikmpd.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: other if success, return pointer to the message to send.
- * 0 if fail.
+ * m will always be freed.
*/
static int
-key_spddump(mhp, so, target)
- caddr_t *mhp;
+key_spddump(so, m, mhp)
struct socket *so;
- int target;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct secpolicy *sp;
int cnt;
u_int dir;
- struct mbuf *m;
+ struct mbuf *n;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_spddump: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* search SPD entry and get buffer size. */
cnt = 0;
for (dir = 0; dir < IPSEC_DIR_MAX; dir++) {
}
if (cnt == 0)
- return ENOENT;
+ return key_senderror(so, m, ENOENT);
for (dir = 0; dir < IPSEC_DIR_MAX; dir++) {
LIST_FOREACH(sp, &sptree[dir], chain) {
--cnt;
- m = key_setdumpsp(sp, SADB_X_SPDDUMP,
- cnt, msg0->sadb_msg_pid);
+ n = key_setdumpsp(sp, SADB_X_SPDDUMP, cnt,
+ mhp->msg->sadb_msg_pid);
- if (m)
- key_sendup_mbuf(so, m, target);
+ if (n)
+ key_sendup_mbuf(so, n, KEY_SENDUP_ONE);
}
}
+ m_freem(m);
return 0;
}
u_int8_t type;
u_int32_t seq, pid;
{
- struct mbuf *m;
- u_int tlen;
-
- /* XXX it would be better to avoid pre-computing length */
- tlen = key_getspmsglen(sp);
-
- /* XXX maybe it's a wrong idea to insist on cluster? */
- MGETHDR(m, M_DONTWAIT, MT_DATA);
- if (m != NULL) {
- MCLGET(m, M_DONTWAIT);
- if ((m->m_flags & M_EXT) == 0) {
- m_freem(m);
- m = NULL;
- }
- }
- if (m == NULL)
- return NULL; /*ENOBUFS*/
-
- m->m_pkthdr.len = m->m_len = 0;
- m->m_next = NULL;
-
- /* sadb_msg->sadb_msg_len must be filled afterwards */
- if (key_setsadbmsg_m(m, type, 0, SADB_SATYPE_UNSPEC, seq, pid,
- IPSEC_MODE_ANY, 0, 0, sp->refcnt) != 0) {
- m_freem(m);
- return NULL;
- }
-
- if (key_setsadbaddr_m(m, SADB_EXT_ADDRESS_SRC,
- (struct sockaddr *)&sp->spidx.src, sp->spidx.prefs,
- sp->spidx.ul_proto) != 0) {
- m_freem(m);
- return NULL;
- }
+ struct mbuf *result = NULL, *m;
- if (key_setsadbaddr_m(m, SADB_EXT_ADDRESS_DST,
- (struct sockaddr *)&sp->spidx.dst, sp->spidx.prefd,
- sp->spidx.ul_proto) != 0) {
- m_freem(m);
- return NULL;
- }
+ m = key_setsadbmsg(type, 0, SADB_SATYPE_UNSPEC, seq, pid, sp->refcnt);
+ if (!m)
+ goto fail;
+ result = m;
- {
- struct mbuf *n;
- struct sadb_x_policy *tmp;
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&sp->spidx.src, sp->spidx.prefs,
+ sp->spidx.ul_proto);
+ if (!m)
+ goto fail;
+ m_cat(result, m);
- n = key_sp2msg(sp);
- if (!n || n->m_len < sizeof(*tmp)) {
-#if IPSEC_DEBUG
- printf("key_setdumpsp: No more memory.\n");
-#endif
- m_freem(m);
- if (n)
- m_freem(n);
- return NULL;
- }
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&sp->spidx.dst, sp->spidx.prefd,
+ sp->spidx.ul_proto);
+ if (!m)
+ goto fail;
+ m_cat(result, m);
- tmp = mtod(n, struct sadb_x_policy *);
+ m = key_sp2msg(sp);
+ if (!m)
+ goto fail;
+ m_cat(result, m);
- /* validity check */
- if (key_getspreqmsglen(sp) != PFKEY_UNUNIT64(tmp->sadb_x_policy_len)
- || n->m_len != PFKEY_UNUNIT64(tmp->sadb_x_policy_len))
- panic("key_setdumpsp: length mismatch."
- "sp:%d msg:%d\n",
- key_getspreqmsglen(sp),
- PFKEY_UNUNIT64(tmp->sadb_x_policy_len));
-
- m_cat(m, n);
- m->m_pkthdr.len += n->m_len;
- }
+ if ((result->m_flags & M_PKTHDR) == 0)
+ goto fail;
- if (m->m_len < sizeof(struct sadb_msg)) {
- m = m_pullup(m, sizeof(struct sadb_msg));
- if (m == NULL)
- return NULL;
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result, sizeof(struct sadb_msg));
+ if (result == NULL)
+ goto fail;
}
- mtod(m, struct sadb_msg *)->sadb_msg_len =
- PFKEY_UNIT64(m->m_pkthdr.len);
-
- return m;
-}
-
-/* get sadb message length for a SP. */
-static u_int
-key_getspmsglen(sp)
- struct secpolicy *sp;
-{
- u_int tlen;
- /* sanity check */
- if (sp == NULL)
- panic("key_getspmsglen: NULL pointer is passed.\n");
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
- tlen = (sizeof(struct sadb_msg)
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(_SALENBYAF(sp->spidx.src.ss_family))
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(_SALENBYAF(sp->spidx.dst.ss_family)));
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
- tlen += key_getspreqmsglen(sp);
+ return result;
- return tlen;
+fail:
+ m_freem(result);
+ return NULL;
}
/*
return tlen;
}
+/*
+ * SADB_SPDEXPIRE processing
+ * send
+ * <base, address(SD), lifetime(CH), policy>
+ * to KMD by PF_KEY.
+ *
+ * OUT: 0 : succeed
+ * others : error number
+ */
+static int
+key_spdexpire(sp)
+ struct secpolicy *sp;
+{
+ int s;
+ struct mbuf *result = NULL, *m;
+ int len;
+ int error = -1;
+ struct sadb_lifetime *lt;
+
+ /* XXX: Why do we lock ? */
+ s = splnet(); /*called from softclock()*/
+
+ /* sanity check */
+ if (sp == NULL)
+ panic("key_spdexpire: NULL pointer is passed.\n");
+
+ /* set msg header */
+ m = key_setsadbmsg(SADB_X_SPDEXPIRE, 0, 0, 0, 0, 0);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ result = m;
+
+ /* create lifetime extension (current and hard) */
+ len = PFKEY_ALIGN8(sizeof(*lt)) * 2;
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ error = ENOBUFS;
+ goto fail;
+ }
+ bzero(mtod(m, caddr_t), len);
+ lt = mtod(m, struct sadb_lifetime *);
+ lt->sadb_lifetime_len = PFKEY_UNIT64(sizeof(struct sadb_lifetime));
+ lt->sadb_lifetime_exttype = SADB_EXT_LIFETIME_CURRENT;
+ lt->sadb_lifetime_allocations = 0;
+ lt->sadb_lifetime_bytes = 0;
+ lt->sadb_lifetime_addtime = sp->created;
+ lt->sadb_lifetime_usetime = sp->lastused;
+ lt = (struct sadb_lifetime *)(mtod(m, caddr_t) + len / 2);
+ lt->sadb_lifetime_len = PFKEY_UNIT64(sizeof(struct sadb_lifetime));
+ lt->sadb_lifetime_exttype = SADB_EXT_LIFETIME_HARD;
+ lt->sadb_lifetime_allocations = 0;
+ lt->sadb_lifetime_bytes = 0;
+ lt->sadb_lifetime_addtime = sp->lifetime;
+ lt->sadb_lifetime_usetime = sp->validtime;
+ m_cat(result, m);
+
+ /* set sadb_address for source */
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&sp->spidx.src,
+ sp->spidx.prefs, sp->spidx.ul_proto);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+
+ /* set sadb_address for destination */
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&sp->spidx.dst,
+ sp->spidx.prefd, sp->spidx.ul_proto);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+
+ /* set secpolicy */
+ m = key_sp2msg(sp);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+
+ if ((result->m_flags & M_PKTHDR) == 0) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result, sizeof(struct sadb_msg));
+ if (result == NULL) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ }
+
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
+
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ return key_sendup_mbuf(NULL, result, KEY_SENDUP_REGISTERED);
+
+ fail:
+ if (result)
+ m_freem(result);
+ splx(s);
+ return error;
+}
+
/* %%% SAD management */
/*
* allocating a memory for new SA head, and copy from the values of mhp.
if (sah == NULL)
panic("key_delsah: NULL pointer is passed.\n");
-#ifdef __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
/* searching all SA registerd in the secindex. */
for (stateidx = 0;
}
if (sah->sa_route.ro_rt) {
- RTFREE(sah->sa_route.ro_rt);
+ rtfree(sah->sa_route.ro_rt);
sah->sa_route.ro_rt = (struct rtentry *)NULL;
}
* not to call key_setsava().
* OUT: NULL : fail
* others : pointer to new secasvar.
+ *
+ * does not modify mbuf. does not free mbuf on error.
*/
static struct secasvar *
-key_newsav(mhp, sah)
- caddr_t *mhp;
+key_newsav(m, mhp, sah, errp)
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
struct secashead *sah;
+ int *errp;
{
struct secasvar *newsav;
- struct sadb_msg *msg0;
+ const struct sadb_sa *xsa;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL || sah == NULL)
+ if (m == NULL || mhp == NULL || mhp->msg == NULL || sah == NULL)
panic("key_newsa: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
KMALLOC(newsav, struct secasvar *, sizeof(struct secasvar));
if (newsav == NULL) {
-#if IPSEC_DEBUG
- printf("key_newsa: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
+ ipseclog((LOG_DEBUG, "key_newsa: No more memory.\n"));
+ *errp = ENOBUFS;
return NULL;
}
bzero((caddr_t)newsav, sizeof(struct secasvar));
- switch (msg0->sadb_msg_type) {
+ switch (mhp->msg->sadb_msg_type) {
case SADB_GETSPI:
newsav->spi = 0;
#if IPSEC_DOSEQCHECK
/* sync sequence number */
- if (msg0->sadb_msg_seq == 0)
+ if (mhp->msg->sadb_msg_seq == 0)
newsav->seq =
(acq_seq = (acq_seq == ~0 ? 1 : ++acq_seq));
else
#endif
- newsav->seq = msg0->sadb_msg_seq;
+ newsav->seq = mhp->msg->sadb_msg_seq;
break;
case SADB_ADD:
/* sanity check */
- if (mhp[SADB_EXT_SA] == NULL) {
+ if (mhp->ext[SADB_EXT_SA] == NULL) {
KFREE(newsav);
-#if IPSEC_DEBUG
- printf("key_newsa: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_newsa: invalid message is passed.\n"));
+ *errp = EINVAL;
return NULL;
}
- newsav->spi = ((struct sadb_sa *)mhp[SADB_EXT_SA])->sadb_sa_spi;
- newsav->seq = msg0->sadb_msg_seq;
+ xsa = (const struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ newsav->spi = xsa->sadb_sa_spi;
+ newsav->seq = mhp->msg->sadb_msg_seq;
break;
default:
KFREE(newsav);
- msg0->sadb_msg_errno = EINVAL;
+ *errp = EINVAL;
return NULL;
}
/* copy sav values */
- if (msg0->sadb_msg_type != SADB_GETSPI && key_setsaval(newsav, mhp)) {
- KFREE(newsav);
- /* msg0->sadb_msg_errno is set at key_setsaval. */
- return NULL;
+ if (mhp->msg->sadb_msg_type != SADB_GETSPI) {
+ *errp = key_setsaval(newsav, m, mhp);
+ if (*errp) {
+ KFREE(newsav);
+ return NULL;
+ }
}
- /* reset tick */
- newsav->tick = 0;
+ /* reset created */
+ {
+ struct timeval tv;
+ microtime(&tv);
+ newsav->created = tv.tv_sec;
+ }
- newsav->pid = msg0->sadb_msg_pid;
+ newsav->pid = mhp->msg->sadb_msg_pid;
/* add to satree */
newsav->sah = sah;
if (__LIST_CHAINED(sav))
LIST_REMOVE(sav, chain);
- if (sav->key_auth != NULL)
+ if (sav->key_auth != NULL) {
+ bzero(_KEYBUF(sav->key_auth), _KEYLEN(sav->key_auth));
KFREE(sav->key_auth);
- if (sav->key_enc != NULL)
+ sav->key_auth = NULL;
+ }
+ if (sav->key_enc != NULL) {
+ bzero(_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc));
KFREE(sav->key_enc);
- if (sav->replay != NULL)
+ sav->key_enc = NULL;
+ }
+ if (sav->sched) {
+ bzero(sav->sched, sav->schedlen);
+ KFREE(sav->sched);
+ sav->sched = NULL;
+ }
+ if (sav->replay != NULL) {
keydb_delsecreplay(sav->replay);
- if (sav->lft_c != NULL)
+ sav->replay = NULL;
+ }
+ if (sav->lft_c != NULL) {
KFREE(sav->lft_c);
- if (sav->lft_h != NULL)
+ sav->lft_c = NULL;
+ }
+ if (sav->lft_h != NULL) {
KFREE(sav->lft_h);
- if (sav->lft_s != NULL)
+ sav->lft_h = NULL;
+ }
+ if (sav->lft_s != NULL) {
KFREE(sav->lft_s);
- if (sav->iv != NULL)
+ sav->lft_s = NULL;
+ }
+ if (sav->iv != NULL) {
KFREE(sav->iv);
-#if notyet
- if (sav->misc1 != NULL)
- KFREE(sav->misc1);
- if (sav->misc2 != NULL)
- KFREE(sav->misc2);
- if (sav->misc3 != NULL)
- KFREE(sav->misc3);
-#endif
+ sav->iv = NULL;
+ }
KFREE(sav);
LIST_FOREACH(sah, &sahtree, chain) {
if (sah->state == SADB_SASTATE_DEAD)
continue;
- if (key_cmpsaidx_exactly(&sah->saidx, saidx))
- return(sah);
+ if (key_cmpsaidx(&sah->saidx, saidx, CMP_REQID))
+ return sah;
}
return NULL;
/* check address family */
if (saidx->src.ss_family != saidx->dst.ss_family) {
-#if IPSEC_DEBUG
- printf("key_checkspidup: address family mismatched.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_checkspidup: address family mismatched.\n"));
return NULL;
}
/* check all SAD */
LIST_FOREACH(sah, &sahtree, chain) {
- if (!key_ismyaddr(sah->saidx.dst.ss_family,
- _INADDRBYSA(&sah->saidx.dst)))
+ if (!key_ismyaddr((struct sockaddr *)&sah->saidx.dst))
continue;
sav = key_getsavbyspi(sah, spi);
if (sav != NULL)
/* sanity check */
if (sav->state != state) {
-#if IPSEC_DEBUG
- printf("key_getsavbyspi: "
- "invalid sav->state "
- "(queue: %d SA: %d)\n",
- state, sav->state);
-#endif
+ ipseclog((LOG_DEBUG, "key_getsavbyspi: "
+ "invalid sav->state (queue: %d SA: %d)\n",
+ state, sav->state));
continue;
}
* copy SA values from PF_KEY message except *SPI, SEQ, PID, STATE and TYPE*.
* You must update these if need.
* OUT: 0: success.
- * 1: failure. set errno to (mhp[0])->sadb_msg_errno.
+ * !0: failure.
+ *
+ * does not modify mbuf. does not free mbuf on error.
*/
static int
-key_setsaval(sav, mhp)
+key_setsaval(sav, m, mhp)
struct secasvar *sav;
- caddr_t *mhp;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
+#if IPSEC_ESP
+ const struct esp_algorithm *algo;
+#endif
int error = 0;
+ struct timeval tv;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_setsaval: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* initialization */
sav->replay = NULL;
sav->key_auth = NULL;
sav->key_enc = NULL;
+ sav->sched = NULL;
+ sav->schedlen = 0;
sav->iv = NULL;
sav->lft_c = NULL;
sav->lft_h = NULL;
sav->lft_s = NULL;
-#if notyet
- sav->misc1 = NULL;
- sav->misc2 = NULL;
- sav->misc3 = NULL;
-#endif
+ sav->remote_ike_port = 0;
+ sav->natt_last_activity = natt_now;
/* SA */
- if (mhp[SADB_EXT_SA] != NULL) {
- struct sadb_sa *sa0 = (struct sadb_sa *)mhp[SADB_EXT_SA];
+ if (mhp->ext[SADB_EXT_SA] != NULL) {
+ const struct sadb_sa *sa0;
+
+ sa0 = (const struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ if (mhp->extlen[SADB_EXT_SA] < sizeof(*sa0)) {
+ error = EINVAL;
+ goto fail;
+ }
sav->alg_auth = sa0->sadb_sa_auth;
sav->alg_enc = sa0->sadb_sa_encrypt;
sav->flags = sa0->sadb_sa_flags;
+
+ /*
+ * Verify that a nat-traversal port was specified if
+ * the nat-traversal flag is set.
+ */
+ if ((sav->flags & SADB_X_EXT_NATT) != 0) {
+ if (mhp->extlen[SADB_EXT_SA] < sizeof(struct sadb_sa_2) ||
+ ((struct sadb_sa_2*)(sa0))->sadb_sa_natt_port == 0) {
+ error = EINVAL;
+ goto fail;
+ }
+ sav->remote_ike_port = ((struct sadb_sa_2*)(sa0))->sadb_sa_natt_port;
+ }
/* replay window */
if ((sa0->sadb_sa_flags & SADB_X_EXT_OLD) == 0) {
sav->replay = keydb_newsecreplay(sa0->sadb_sa_replay);
if (sav->replay == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
}
}
/* Authentication keys */
- if (mhp[SADB_EXT_KEY_AUTH] != NULL) {
- struct sadb_key *key0;
- u_int len;
+ if (mhp->ext[SADB_EXT_KEY_AUTH] != NULL) {
+ const struct sadb_key *key0;
+ int len;
- key0 = (struct sadb_key *)mhp[SADB_EXT_KEY_AUTH];
- len = PFKEY_UNUNIT64(key0->sadb_key_len);
+ key0 = (const struct sadb_key *)mhp->ext[SADB_EXT_KEY_AUTH];
+ len = mhp->extlen[SADB_EXT_KEY_AUTH];
error = 0;
- if (len < sizeof(struct sadb_key))
+ if (len < sizeof(*key0)) {
error = EINVAL;
- switch (msg0->sadb_msg_satype) {
+ goto fail;
+ }
+ switch (mhp->msg->sadb_msg_satype) {
case SADB_SATYPE_AH:
case SADB_SATYPE_ESP:
- if (len == sizeof(struct sadb_key)
- && sav->alg_auth != SADB_AALG_NULL) {
+ if (len == PFKEY_ALIGN8(sizeof(struct sadb_key)) &&
+ sav->alg_auth != SADB_X_AALG_NULL)
error = EINVAL;
- }
break;
case SADB_X_SATYPE_IPCOMP:
- error = EINVAL;
- break;
default:
error = EINVAL;
break;
}
if (error) {
-#if IPSEC_DEBUG
- printf("key_setsaval: invalid key_auth values.\n");
-#endif
- goto err;
+ ipseclog((LOG_DEBUG, "key_setsaval: invalid key_auth values.\n"));
+ goto fail;
}
sav->key_auth = (struct sadb_key *)key_newbuf(key0, len);
if (sav->key_auth == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
-
- /* make length shift up for kernel*/
- sav->key_auth->sadb_key_len = len;
}
/* Encryption key */
- if (mhp[SADB_EXT_KEY_ENCRYPT] != NULL) {
- struct sadb_key *key0;
- u_int len;
+ if (mhp->ext[SADB_EXT_KEY_ENCRYPT] != NULL) {
+ const struct sadb_key *key0;
+ int len;
- key0 = (struct sadb_key *)mhp[SADB_EXT_KEY_ENCRYPT];
- len = PFKEY_UNUNIT64(key0->sadb_key_len);
+ key0 = (const struct sadb_key *)mhp->ext[SADB_EXT_KEY_ENCRYPT];
+ len = mhp->extlen[SADB_EXT_KEY_ENCRYPT];
error = 0;
- if (len < sizeof(struct sadb_key))
+ if (len < sizeof(*key0)) {
error = EINVAL;
- switch (msg0->sadb_msg_satype) {
+ goto fail;
+ }
+ switch (mhp->msg->sadb_msg_satype) {
case SADB_SATYPE_ESP:
- if (len == sizeof(struct sadb_key)
- && sav->alg_enc != SADB_EALG_NULL) {
+ if (len == PFKEY_ALIGN8(sizeof(struct sadb_key)) &&
+ sav->alg_enc != SADB_EALG_NULL) {
error = EINVAL;
+ break;
+ }
+ sav->key_enc = (struct sadb_key *)key_newbuf(key0, len);
+ if (sav->key_enc == NULL) {
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
+ error = ENOBUFS;
+ goto fail;
}
- break;
- case SADB_SATYPE_AH:
- error = EINVAL;
break;
case SADB_X_SATYPE_IPCOMP:
+ if (len != PFKEY_ALIGN8(sizeof(struct sadb_key)))
+ error = EINVAL;
+ sav->key_enc = NULL; /*just in case*/
break;
+ case SADB_SATYPE_AH:
default:
error = EINVAL;
break;
}
if (error) {
-#if IPSEC_DEBUG
- printf("key_setsatval: invalid key_enc value.\n");
-#endif
- goto err;
- }
-
- sav->key_enc = (struct sadb_key *)key_newbuf(key0, len);
- if (sav->key_enc == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
- error = ENOBUFS;
- goto err;
+ ipseclog((LOG_DEBUG, "key_setsatval: invalid key_enc value.\n"));
+ goto fail;
}
-
- /* make length shift up for kernel*/
- sav->key_enc->sadb_key_len = len;
}
/* set iv */
sav->ivlen = 0;
- switch (msg0->sadb_msg_satype) {
+ switch (mhp->msg->sadb_msg_satype) {
case SADB_SATYPE_ESP:
#if IPSEC_ESP
- {
- struct esp_algorithm *algo;
-
- algo = &esp_algorithms[sav->alg_enc];
+ algo = esp_algorithm_lookup(sav->alg_enc);
if (algo && algo->ivlen)
- sav->ivlen = (*algo->ivlen)(sav);
+ sav->ivlen = (*algo->ivlen)(algo, sav);
+ if (sav->ivlen == 0)
+ break;
KMALLOC(sav->iv, caddr_t, sav->ivlen);
if (sav->iv == 0) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
- /* initialize ? */
- break;
- }
-#else
- break;
+
+ /* initialize */
+ key_randomfill(sav->iv, sav->ivlen);
#endif
+ break;
case SADB_SATYPE_AH:
-#if 1 /*nonstandard*/
case SADB_X_SATYPE_IPCOMP:
-#endif
break;
default:
-#if IPSEC_DEBUG
- printf("key_setsaval: invalid SA type.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: invalid SA type.\n"));
error = EINVAL;
- goto err;
+ goto fail;
}
- /* reset tick */
- sav->tick = 0;
+ /* reset created */
+ microtime(&tv);
+ sav->created = tv.tv_sec;
/* make lifetime for CURRENT */
- {
- struct timeval tv;
-
KMALLOC(sav->lft_c, struct sadb_lifetime *,
- sizeof(struct sadb_lifetime));
+ sizeof(struct sadb_lifetime));
if (sav->lft_c == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
microtime(&tv);
sav->lft_c->sadb_lifetime_len =
- PFKEY_UNIT64(sizeof(struct sadb_lifetime));
+ PFKEY_UNIT64(sizeof(struct sadb_lifetime));
sav->lft_c->sadb_lifetime_exttype = SADB_EXT_LIFETIME_CURRENT;
sav->lft_c->sadb_lifetime_allocations = 0;
sav->lft_c->sadb_lifetime_bytes = 0;
sav->lft_c->sadb_lifetime_addtime = tv.tv_sec;
sav->lft_c->sadb_lifetime_usetime = 0;
- }
/* lifetimes for HARD and SOFT */
{
- struct sadb_lifetime *lft0;
+ const struct sadb_lifetime *lft0;
- lft0 = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_HARD];
+ lft0 = (struct sadb_lifetime *)mhp->ext[SADB_EXT_LIFETIME_HARD];
if (lft0 != NULL) {
+ if (mhp->extlen[SADB_EXT_LIFETIME_HARD] < sizeof(*lft0)) {
+ error = EINVAL;
+ goto fail;
+ }
sav->lft_h = (struct sadb_lifetime *)key_newbuf(lft0,
- sizeof(*lft0));
+ sizeof(*lft0));
if (sav->lft_h == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
/* to be initialize ? */
}
- lft0 = (struct sadb_lifetime *)mhp[SADB_EXT_LIFETIME_SOFT];
+ lft0 = (struct sadb_lifetime *)mhp->ext[SADB_EXT_LIFETIME_SOFT];
if (lft0 != NULL) {
+ if (mhp->extlen[SADB_EXT_LIFETIME_SOFT] < sizeof(*lft0)) {
+ error = EINVAL;
+ goto fail;
+ }
sav->lft_s = (struct sadb_lifetime *)key_newbuf(lft0,
- sizeof(*lft0));
+ sizeof(*lft0));
if (sav->lft_s == NULL) {
-#if IPSEC_DEBUG
- printf("key_setsaval: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_setsaval: No more memory.\n"));
error = ENOBUFS;
- goto err;
+ goto fail;
}
/* to be initialize ? */
}
}
-#if notyet
- /* pre-processing for DES */
- switch (sav->alg_enc) {
- case SADB_EALG_DESCBC:
- if (des_key_sched((C_Block *)_KEYBUF(sav->key_enc),
- (des_key_schedule)sav->misc1) != 0) {
-#if IPSEC_DEBUG
- printf("key_setsaval: error des_key_sched.\n");
-#endif
- sav->misc1 = NULL;
- /* THROUGH */
- }
- break;
- case SADB_EALG_3DESCBC:
- if (des_key_sched((C_Block *)_KEYBUF(sav->key_enc),
- (des_key_schedule)sav->misc1) != 0
- || des_key_sched((C_Block *)(_KEYBUF(sav->key_enc) + 8),
- (des_key_schedule)sav->misc2) != 0
- || des_key_sched((C_Block *)(_KEYBUF(sav->key_enc) + 16),
- (des_key_schedule)sav->misc3) != 0) {
-#if IPSEC_DEBUG
- printf("key_setsaval: error des_key_sched.\n");
-#endif
- sav->misc1 = NULL;
- sav->misc2 = NULL;
- sav->misc3 = NULL;
- /* THROUGH */
- }
- }
-#endif
-
- msg0->sadb_msg_errno = 0;
return 0;
- err:
+ fail:
/* initialization */
- if (sav->replay != NULL)
+ if (sav->replay != NULL) {
keydb_delsecreplay(sav->replay);
- if (sav->key_auth != NULL)
+ sav->replay = NULL;
+ }
+ if (sav->key_auth != NULL) {
+ bzero(_KEYBUF(sav->key_auth), _KEYLEN(sav->key_auth));
KFREE(sav->key_auth);
- if (sav->key_enc != NULL)
+ sav->key_auth = NULL;
+ }
+ if (sav->key_enc != NULL) {
+ bzero(_KEYBUF(sav->key_enc), _KEYLEN(sav->key_enc));
KFREE(sav->key_enc);
- if (sav->iv != NULL)
+ sav->key_enc = NULL;
+ }
+ if (sav->sched) {
+ bzero(sav->sched, sav->schedlen);
+ KFREE(sav->sched);
+ sav->sched = NULL;
+ }
+ if (sav->iv != NULL) {
KFREE(sav->iv);
- if (sav->lft_c != NULL)
+ sav->iv = NULL;
+ }
+ if (sav->lft_c != NULL) {
KFREE(sav->lft_c);
- if (sav->lft_h != NULL)
+ sav->lft_c = NULL;
+ }
+ if (sav->lft_h != NULL) {
KFREE(sav->lft_h);
- if (sav->lft_s != NULL)
+ sav->lft_h = NULL;
+ }
+ if (sav->lft_s != NULL) {
KFREE(sav->lft_s);
-#if notyet
- if (sav->misc1 != NULL)
- KFREE(sav->misc1);
- if (sav->misc2 != NULL)
- KFREE(sav->misc2);
- if (sav->misc3 != NULL)
- KFREE(sav->misc3);
-#endif
-
- msg0->sadb_msg_errno = error;
- return 1;
-}
+ sav->lft_s = NULL;
+ }
-/*
- * get message buffer length.
- */
-static u_int
-key_getmsglen(sav)
- struct secasvar *sav;
-{
- int len = sizeof(struct sadb_msg);
-
- len += sizeof(struct sadb_sa);
- len += (sizeof(struct sadb_address)
- + PFKEY_ALIGN8(_SALENBYAF(sav->sah->saidx.src.ss_family)));
- len += (sizeof(struct sadb_address)
- + PFKEY_ALIGN8(_SALENBYAF(sav->sah->saidx.dst.ss_family)));
-
- if (sav->key_auth != NULL)
- len += sav->key_auth->sadb_key_len;
- if (sav->key_enc != NULL)
- len += sav->key_enc->sadb_key_len;
-
- if (sav->lft_c != NULL)
- len += sizeof(struct sadb_lifetime);
- if (sav->lft_h != NULL)
- len += sizeof(struct sadb_lifetime);
- if (sav->lft_s != NULL)
- len += sizeof(struct sadb_lifetime);
-
- return len;
+ return error;
}
/*
mature = 0;
/* check SPI value */
- if (ntohl(sav->spi) >= 0 && ntohl(sav->spi) <= 255) {
-#if IPSEC_DEBUG
- printf("key_mature: illegal range of SPI %d.\n", sav->spi);
-#endif
- return EINVAL;
+ switch (sav->sah->saidx.proto) {
+ case IPPROTO_ESP:
+ case IPPROTO_AH:
+ if (ntohl(sav->spi) >= 0 && ntohl(sav->spi) <= 255) {
+ ipseclog((LOG_DEBUG,
+ "key_mature: illegal range of SPI %u.\n",
+ (u_int32_t)ntohl(sav->spi)));
+ return EINVAL;
+ }
+ break;
}
/* check satype */
/* check flags */
if ((sav->flags & SADB_X_EXT_OLD)
&& (sav->flags & SADB_X_EXT_DERIV)) {
-#if IPSEC_DEBUG
- printf("key_mature: "
- "invalid flag (derived) given to old-esp.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: "
+ "invalid flag (derived) given to old-esp.\n"));
return EINVAL;
}
- checkmask = 3;
+ if (sav->alg_auth == SADB_AALG_NONE)
+ checkmask = 1;
+ else
+ checkmask = 3;
mustmask = 1;
break;
case IPPROTO_AH:
/* check flags */
if (sav->flags & SADB_X_EXT_DERIV) {
-#if IPSEC_DEBUG
- printf("key_mature: "
- "invalid flag (derived) given to AH SA.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: "
+ "invalid flag (derived) given to AH SA.\n"));
return EINVAL;
}
if (sav->alg_enc != SADB_EALG_NONE) {
-#if IPSEC_DEBUG
- printf("key_mature: "
- "protocol and algorithm mismated.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: "
+ "protocol and algorithm mismated.\n"));
return(EINVAL);
}
checkmask = 2;
mustmask = 2;
break;
-#if 1 /*nonstandard*/
case IPPROTO_IPCOMP:
if (sav->alg_auth != SADB_AALG_NONE) {
-#if IPSEC_DEBUG
- printf("key_mature: "
- "protocol and algorithm mismated.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: "
+ "protocol and algorithm mismated.\n"));
return(EINVAL);
}
if ((sav->flags & SADB_X_EXT_RAWCPI) == 0
&& ntohl(sav->spi) >= 0x10000) {
-#if IPSEC_DEBUG
- printf("key_mature: invalid cpi for IPComp.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: invalid cpi for IPComp.\n"));
return(EINVAL);
}
checkmask = 4;
mustmask = 4;
break;
-#endif
default:
-#if IPSEC_DEBUG
- printf("key_mature: Invalid satype.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: Invalid satype.\n"));
return EPROTONOSUPPORT;
}
/* check authentication algorithm */
if ((checkmask & 2) != 0) {
- struct ah_algorithm *algo;
+ const struct ah_algorithm *algo;
int keylen;
- /* XXX: should use algorithm map to check. */
- switch (sav->alg_auth) {
- case SADB_AALG_NONE:
- case SADB_AALG_MD5HMAC:
- case SADB_AALG_SHA1HMAC:
- case SADB_AALG_MD5:
- case SADB_AALG_SHA:
- case SADB_AALG_NULL:
- break;
- default:
-#if IPSEC_DEBUG
- printf("key_mature: "
- "unknown authentication algorithm.\n");
-#endif
+ algo = ah_algorithm_lookup(sav->alg_auth);
+ if (!algo) {
+ ipseclog((LOG_DEBUG,"key_mature: "
+ "unknown authentication algorithm.\n"));
return EINVAL;
}
/* algorithm-dependent check */
- algo = &ah_algorithms[sav->alg_auth];
-
if (sav->key_auth)
keylen = sav->key_auth->sadb_key_bits;
else
keylen = 0;
if (keylen < algo->keymin || algo->keymax < keylen) {
-#if IPSEC_DEBUG
- printf("key_mature: invalid AH key length %d "
- "(%d-%d allowed)\n", keylen,
- algo->keymin, algo->keymax);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_mature: invalid AH key length %d "
+ "(%d-%d allowed)\n",
+ keylen, algo->keymin, algo->keymax));
return EINVAL;
}
}
if ((mustmask & 2) != 0 && mature != SADB_SATYPE_AH) {
-#if IPSEC_DEBUG
- printf("key_mature: no satisfy algorithm for AH\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: no satisfy algorithm for AH\n"));
return EINVAL;
}
}
/* check encryption algorithm */
if ((checkmask & 1) != 0) {
#if IPSEC_ESP
- struct esp_algorithm *algo;
+ const struct esp_algorithm *algo;
int keylen;
- switch (sav->alg_enc) {
- case SADB_EALG_NONE:
- case SADB_EALG_DESCBC:
- case SADB_EALG_3DESCBC:
- case SADB_EALG_NULL:
- case SADB_EALG_BLOWFISHCBC:
- case SADB_EALG_CAST128CBC:
- case SADB_EALG_RC5CBC:
- break;
- default:
-#if IPSEC_DEBUG
- printf("key_mature: unknown encryption algorithm.\n");
-#endif
+ algo = esp_algorithm_lookup(sav->alg_enc);
+ if (!algo) {
+ ipseclog((LOG_DEBUG, "key_mature: unknown encryption algorithm.\n"));
return EINVAL;
}
/* algorithm-dependent check */
- algo = &esp_algorithms[sav->alg_enc];
-
if (sav->key_enc)
keylen = sav->key_enc->sadb_key_bits;
else
keylen = 0;
if (keylen < algo->keymin || algo->keymax < keylen) {
-#if IPSEC_DEBUG
- printf("key_mature: invalid ESP key length %d "
- "(%d-%d allowed)\n", keylen,
- algo->keymin, algo->keymax);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_mature: invalid ESP key length %d "
+ "(%d-%d allowed)\n",
+ keylen, algo->keymin, algo->keymax));
return EINVAL;
}
}
if ((mustmask & 1) != 0 && mature != SADB_SATYPE_ESP) {
-#if IPSEC_DEBUG
- printf("key_mature: no satisfy algorithm for ESP\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: no satisfy algorithm for ESP\n"));
return EINVAL;
}
#else /*IPSEC_ESP*/
-#if IPSEC_DEBUG
- printf("key_mature: ESP not supported in this configuration\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_mature: ESP not supported in this configuration\n"));
return EINVAL;
#endif
}
/* check compression algorithm */
if ((checkmask & 4) != 0) {
- struct ipcomp_algorithm *algo;
-
- switch (sav->alg_enc) {
- case SADB_X_CALG_NONE:
- case SADB_X_CALG_OUI:
- case SADB_X_CALG_DEFLATE:
- case SADB_X_CALG_LZS:
- break;
- default:
-#if IPSEC_DEBUG
- printf("key_mature: unknown compression algorithm.\n");
-#endif
- return EINVAL;
- }
+ const struct ipcomp_algorithm *algo;
/* algorithm-dependent check */
- algo = &ipcomp_algorithms[sav->alg_enc];
-
- if (!(algo->compress && algo->decompress)) {
-#if IPSEC_DEBUG
- printf("key_mature: "
- "unsupported compression algorithm.\n");
-#endif
+ algo = ipcomp_algorithm_lookup(sav->alg_enc);
+ if (!algo) {
+ ipseclog((LOG_DEBUG, "key_mature: unknown compression algorithm.\n"));
return EINVAL;
}
}
/*
* subroutine for SADB_GET and SADB_DUMP.
- * the buf must be allocated sufficent space.
*/
-static u_int
-key_setdumpsa(newmsg, sav, type, satype, seq, pid)
- struct sadb_msg *newmsg;
+static struct mbuf *
+key_setdumpsa(sav, type, satype, seq, pid)
struct secasvar *sav;
u_int8_t type, satype;
u_int32_t seq, pid;
{
- u_int tlen;
- caddr_t p;
+ struct mbuf *result = NULL, *tres = NULL, *m;
+ int l = 0;
int i;
+ void *p;
+ int dumporder[] = {
+ SADB_EXT_SA, SADB_X_EXT_SA2,
+ SADB_EXT_LIFETIME_HARD, SADB_EXT_LIFETIME_SOFT,
+ SADB_EXT_LIFETIME_CURRENT, SADB_EXT_ADDRESS_SRC,
+ SADB_EXT_ADDRESS_DST, SADB_EXT_ADDRESS_PROXY, SADB_EXT_KEY_AUTH,
+ SADB_EXT_KEY_ENCRYPT, SADB_EXT_IDENTITY_SRC,
+ SADB_EXT_IDENTITY_DST, SADB_EXT_SENSITIVITY,
+ };
+
+ m = key_setsadbmsg(type, 0, satype, seq, pid, sav->refcnt);
+ if (m == NULL)
+ goto fail;
+ result = m;
- tlen = key_getmsglen(sav);
-
- p = key_setsadbmsg((caddr_t)newmsg, type, tlen,
- satype, seq, pid,
- sav->sah->saidx.mode, sav->sah->saidx.reqid,
- 0, sav->refcnt);
-
- for (i = 1; i <= SADB_EXT_MAX; i++) {
- switch (i) {
+ for (i = sizeof(dumporder)/sizeof(dumporder[0]) - 1; i >= 0; i--) {
+ m = NULL;
+ p = NULL;
+ switch (dumporder[i]) {
case SADB_EXT_SA:
- p = key_setsadbsa(p, sav);
+ m = key_setsadbsa(sav);
+ if (!m)
+ goto fail;
+ break;
+
+ case SADB_X_EXT_SA2:
+ m = key_setsadbxsa2(sav->sah->saidx.mode,
+ sav->replay ? sav->replay->count : 0,
+ sav->sah->saidx.reqid);
+ if (!m)
+ goto fail;
break;
case SADB_EXT_ADDRESS_SRC:
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_SRC,
- (struct sockaddr *)&sav->sah->saidx.src,
- _INALENBYAF(sav->sah->saidx.src.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&sav->sah->saidx.src,
+ FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m)
+ goto fail;
break;
case SADB_EXT_ADDRESS_DST:
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_DST,
- (struct sockaddr *)&sav->sah->saidx.dst,
- _INALENBYAF(sav->sah->saidx.dst.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&sav->sah->saidx.dst,
+ FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m)
+ goto fail;
break;
case SADB_EXT_KEY_AUTH:
- {
- u_int len;
- if (sav->key_auth == NULL) break;
- len = sav->key_auth->sadb_key_len; /* real length */
- bcopy((caddr_t)sav->key_auth, p, len);
- ((struct sadb_ext *)p)->sadb_ext_len = PFKEY_UNIT64(len);
- p += len;
- }
+ if (!sav->key_auth)
+ continue;
+ l = PFKEY_UNUNIT64(sav->key_auth->sadb_key_len);
+ p = sav->key_auth;
break;
case SADB_EXT_KEY_ENCRYPT:
- {
- u_int len;
- if (sav->key_enc == NULL) break;
- len = sav->key_enc->sadb_key_len; /* real length */
- bcopy((caddr_t)sav->key_enc, p, len);
- ((struct sadb_ext *)p)->sadb_ext_len = PFKEY_UNIT64(len);
- p += len;
- }
- break;;
+ if (!sav->key_enc)
+ continue;
+ l = PFKEY_UNUNIT64(sav->key_enc->sadb_key_len);
+ p = sav->key_enc;
+ break;
case SADB_EXT_LIFETIME_CURRENT:
- if (sav->lft_c == NULL) break;
- p = key_setsadbext(p, (caddr_t)sav->lft_c);
+ if (!sav->lft_c)
+ continue;
+ l = PFKEY_UNUNIT64(((struct sadb_ext *)sav->lft_c)->sadb_ext_len);
+ p = sav->lft_c;
break;
case SADB_EXT_LIFETIME_HARD:
- if (sav->lft_h == NULL) break;
- p = key_setsadbext(p, (caddr_t)sav->lft_h);
+ if (!sav->lft_h)
+ continue;
+ l = PFKEY_UNUNIT64(((struct sadb_ext *)sav->lft_h)->sadb_ext_len);
+ p = sav->lft_h;
break;
case SADB_EXT_LIFETIME_SOFT:
- if (sav->lft_s == NULL) break;
- p = key_setsadbext(p, (caddr_t)sav->lft_s);
+ if (!sav->lft_s)
+ continue;
+ l = PFKEY_UNUNIT64(((struct sadb_ext *)sav->lft_s)->sadb_ext_len);
+ p = sav->lft_s;
break;
+ case SADB_EXT_ADDRESS_PROXY:
case SADB_EXT_IDENTITY_SRC:
case SADB_EXT_IDENTITY_DST:
/* XXX: should we brought from SPD ? */
case SADB_EXT_SENSITIVITY:
default:
- break;
+ continue;
+ }
+
+ if ((!m && !p) || (m && p))
+ goto fail;
+ if (p && tres) {
+ M_PREPEND(tres, l, M_DONTWAIT);
+ if (!tres)
+ goto fail;
+ bcopy(p, mtod(tres, caddr_t), l);
+ continue;
}
+ if (p) {
+ m = key_alloc_mbuf(l);
+ if (!m)
+ goto fail;
+ m_copyback(m, 0, l, p);
+ }
+
+ if (tres)
+ m_cat(m, tres);
+ tres = m;
}
- return tlen;
-}
+ m_cat(result, tres);
-#if 1
-static int
-key_setsadbmsg_m(m, type, tlen, satype, seq, pid, mode, reqid,
- reserved1, reserved2)
- struct mbuf *m;
- u_int8_t type, satype;
- u_int16_t tlen;
- u_int32_t seq;
- pid_t pid;
- u_int8_t mode;
- u_int32_t reqid;
- u_int8_t reserved1;
- u_int32_t reserved2;
-{
- caddr_t p;
- const size_t len = sizeof(struct sadb_msg);
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result, sizeof(struct sadb_msg));
+ if (result == NULL)
+ goto fail;
+ }
- p = key_appendmbuf(m, len);
- if (p == NULL)
- return ENOBUFS;
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
- if (key_setsadbmsg(p, type, tlen, satype, seq, pid, mode, reqid,
- reserved1, reserved2))
- return 0;
- else
- return EINVAL;
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ return result;
+
+fail:
+ m_freem(result);
+ m_freem(tres);
+ return NULL;
}
-#endif
/*
* set data into sadb_msg.
- * `buf' must has been allocated sufficiently.
*/
-static caddr_t
-key_setsadbmsg(buf, type, tlen, satype, seq, pid, mode, reqid,
- reserved1, reserved2)
- caddr_t buf;
+static struct mbuf *
+key_setsadbmsg(type, tlen, satype, seq, pid, reserved)
u_int8_t type, satype;
u_int16_t tlen;
u_int32_t seq;
pid_t pid;
- u_int8_t mode;
- u_int32_t reqid;
- u_int8_t reserved1;
- u_int32_t reserved2;
+ u_int16_t reserved;
{
+ struct mbuf *m;
struct sadb_msg *p;
- u_int len;
+ int len;
+
+ len = PFKEY_ALIGN8(sizeof(struct sadb_msg));
+ if (len > MCLBYTES)
+ return NULL;
+ MGETHDR(m, M_DONTWAIT, MT_DATA);
+ if (m && len > MHLEN) {
+ MCLGET(m, M_DONTWAIT);
+ if ((m->m_flags & M_EXT) == 0) {
+ m_freem(m);
+ m = NULL;
+ }
+ }
+ if (!m)
+ return NULL;
+ m->m_pkthdr.len = m->m_len = len;
+ m->m_next = NULL;
- p = (struct sadb_msg *)buf;
- len = sizeof(struct sadb_msg);
+ p = mtod(m, struct sadb_msg *);
bzero(p, len);
p->sadb_msg_version = PF_KEY_V2;
p->sadb_msg_errno = 0;
p->sadb_msg_satype = satype;
p->sadb_msg_len = PFKEY_UNIT64(tlen);
- p->sadb_msg_mode = mode;
- p->sadb_msg_reserved1 = reserved1;
+ p->sadb_msg_reserved = reserved;
p->sadb_msg_seq = seq;
p->sadb_msg_pid = (u_int32_t)pid;
- p->sadb_msg_reqid = reqid;
- p->sadb_msg_reserved2 = reserved2;
- return(buf + len);
+ return m;
}
/*
* copy secasvar data into sadb_address.
- * `buf' must has been allocated sufficiently.
*/
-static caddr_t
-key_setsadbsa(buf, sav)
- caddr_t buf;
+static struct mbuf *
+key_setsadbsa(sav)
struct secasvar *sav;
{
+ struct mbuf *m;
struct sadb_sa *p;
- u_int len;
+ int len;
+
+ len = PFKEY_ALIGN8(sizeof(struct sadb_sa));
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ return NULL;
+ }
- p = (struct sadb_sa *)buf;
- len = sizeof(struct sadb_sa);
+ p = mtod(m, struct sadb_sa *);
bzero(p, len);
p->sadb_sa_len = PFKEY_UNIT64(len);
p->sadb_sa_encrypt = sav->alg_enc;
p->sadb_sa_flags = sav->flags;
- return(buf + len);
-}
-
-#if 1
-static int
-key_setsadbaddr_m(m, exttype, saddr, prefixlen, ul_proto)
- struct mbuf *m;
- u_int16_t exttype;
- struct sockaddr *saddr;
- u_int8_t prefixlen;
- u_int16_t ul_proto;
-{
- caddr_t p;
- const size_t len =
- sizeof(struct sadb_address) + PFKEY_ALIGN8(saddr->sa_len);
-
- p = key_appendmbuf(m, len);
- if (p == NULL)
- return ENOBUFS;
-
- if (key_setsadbaddr(p, exttype, saddr, prefixlen, ul_proto))
- return 0;
- else
- return EINVAL;
+ return m;
}
-#endif
/*
* set data into sadb_address.
- * `buf' must has been allocated sufficiently.
*/
-static caddr_t
-key_setsadbaddr(buf, exttype, saddr, prefixlen, ul_proto)
- caddr_t buf;
+static struct mbuf *
+key_setsadbaddr(exttype, saddr, prefixlen, ul_proto)
u_int16_t exttype;
struct sockaddr *saddr;
u_int8_t prefixlen;
u_int16_t ul_proto;
{
+ struct mbuf *m;
struct sadb_address *p;
size_t len;
- p = (struct sadb_address *)buf;
- len = sizeof(struct sadb_address) + PFKEY_ALIGN8(saddr->sa_len);
+ len = PFKEY_ALIGN8(sizeof(struct sadb_address)) +
+ PFKEY_ALIGN8(saddr->sa_len);
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ return NULL;
+ }
+
+ p = mtod(m, struct sadb_address *);
bzero(p, len);
p->sadb_address_len = PFKEY_UNIT64(len);
p->sadb_address_exttype = exttype;
p->sadb_address_proto = ul_proto;
+ if (prefixlen == FULLMASK) {
+ switch (saddr->sa_family) {
+ case AF_INET:
+ prefixlen = sizeof(struct in_addr) << 3;
+ break;
+ case AF_INET6:
+ prefixlen = sizeof(struct in6_addr) << 3;
+ break;
+ default:
+ ; /*XXX*/
+ }
+ }
p->sadb_address_prefixlen = prefixlen;
p->sadb_address_reserved = 0;
- bcopy(saddr, p + 1, saddr->sa_len);
+ bcopy(saddr,
+ mtod(m, caddr_t) + PFKEY_ALIGN8(sizeof(struct sadb_address)),
+ saddr->sa_len);
- return(buf + len);
+ return m;
}
+#if 0
/*
* set data into sadb_ident.
- * `buf' must has been allocated sufficiently.
*/
-static caddr_t
-key_setsadbident(buf, exttype, idtype, string, stringlen, id)
- caddr_t buf;
+static struct mbuf *
+key_setsadbident(exttype, idtype, string, stringlen, id)
u_int16_t exttype, idtype;
caddr_t string;
int stringlen;
u_int64_t id;
{
+ struct mbuf *m;
struct sadb_ident *p;
- u_int len;
+ size_t len;
+
+ len = PFKEY_ALIGN8(sizeof(struct sadb_ident)) + PFKEY_ALIGN8(stringlen);
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ return NULL;
+ }
- p = (struct sadb_ident *)buf;
- len = sizeof(struct sadb_ident) + PFKEY_ALIGN8(stringlen);
+ p = mtod(m, struct sadb_ident *);
bzero(p, len);
p->sadb_ident_len = PFKEY_UNIT64(len);
p->sadb_ident_reserved = 0;
p->sadb_ident_id = id;
- bcopy(string, p + 1, stringlen);
+ bcopy(string,
+ mtod(m, caddr_t) + PFKEY_ALIGN8(sizeof(struct sadb_ident)),
+ stringlen);
+
+ return m;
+}
+#endif
+
+/*
+ * set data into sadb_x_sa2.
+ */
+static struct mbuf *
+key_setsadbxsa2(mode, seq, reqid)
+ u_int8_t mode;
+ u_int32_t seq, reqid;
+{
+ struct mbuf *m;
+ struct sadb_x_sa2 *p;
+ size_t len;
+
+ len = PFKEY_ALIGN8(sizeof(struct sadb_x_sa2));
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ return NULL;
+ }
+
+ p = mtod(m, struct sadb_x_sa2 *);
+
+ bzero(p, len);
+ p->sadb_x_sa2_len = PFKEY_UNIT64(len);
+ p->sadb_x_sa2_exttype = SADB_X_EXT_SA2;
+ p->sadb_x_sa2_mode = mode;
+ p->sadb_x_sa2_reserved1 = 0;
+ p->sadb_x_sa2_reserved2 = 0;
+ p->sadb_x_sa2_sequence = seq;
+ p->sadb_x_sa2_reqid = reqid;
- return(buf + len);
+ return m;
}
/*
* set data into sadb_x_policy
- * `buf' must has been allocated sufficiently.
*/
-static caddr_t
-key_setsadbxpolicy(buf, type, dir, id)
- caddr_t buf;
+static struct mbuf *
+key_setsadbxpolicy(type, dir, id)
u_int16_t type;
u_int8_t dir;
u_int32_t id;
{
+ struct mbuf *m;
struct sadb_x_policy *p;
- u_int len;
+ size_t len;
- p = (struct sadb_x_policy *)buf;
- len = sizeof(struct sadb_x_policy);
+ len = PFKEY_ALIGN8(sizeof(struct sadb_x_policy));
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ return NULL;
+ }
+
+ p = mtod(m, struct sadb_x_policy *);
bzero(p, len);
p->sadb_x_policy_len = PFKEY_UNIT64(len);
p->sadb_x_policy_dir = dir;
p->sadb_x_policy_id = id;
- return(buf + len);
-}
-
-/*
- * copy buffer of any sadb extension type into sadb_ext.
- * assume that sadb_ext_len shifted down >> 3.
- * i.e. shift length up when setting length of extension.
- */
-static caddr_t
-key_setsadbext(p, ext)
- caddr_t p, ext;
-{
- u_int len;
-
- len = PFKEY_UNUNIT64(((struct sadb_ext *)ext)->sadb_ext_len);
-
- bcopy(ext, p, len);
-
- return(p + len);
+ return m;
}
/* %%% utilities */
*/
static void *
key_newbuf(src, len)
- void *src;
+ const void *src;
u_int len;
{
caddr_t new;
KMALLOC(new, caddr_t, len);
if (new == NULL) {
-#if IPSEC_DEBUG
- printf("key_newbuf: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_newbuf: No more memory.\n"));
return NULL;
}
- bcopy((caddr_t)src, new, len);
+ bcopy(src, new, len);
return new;
}
* 0: false
*/
int
-key_ismyaddr(family, addr)
- u_int family;
- caddr_t addr;
+key_ismyaddr(sa)
+ struct sockaddr *sa;
{
+#if INET
+ struct sockaddr_in *sin;
+ struct in_ifaddr *ia;
+#endif
+
/* sanity check */
- if (addr == NULL)
+ if (sa == NULL)
panic("key_ismyaddr: NULL pointer is passed.\n");
- switch (family) {
+ switch (sa->sa_family) {
+#if INET
case AF_INET:
- {
- struct in_ifaddr *ia;
-
-#ifdef __NetBSD__
- for (ia = in_ifaddr.tqh_first; ia; ia = ia->ia_list.tqe_next)
-#elif defined(__FreeBSD__) && __FreeBSD__ >= 3 || defined (__APPLE__)
+ sin = (struct sockaddr_in *)sa;
for (ia = in_ifaddrhead.tqh_first; ia;
ia = ia->ia_link.tqe_next)
-#else
- for (ia = in_ifaddr; ia; ia = ia->ia_next)
-#endif
- if (bcmp(addr,
- (caddr_t)&ia->ia_addr.sin_addr,
- _INALENBYAF(family)) == 0)
+ {
+ if (sin->sin_family == ia->ia_addr.sin_family &&
+ sin->sin_len == ia->ia_addr.sin_len &&
+ sin->sin_addr.s_addr == ia->ia_addr.sin_addr.s_addr)
+ {
return 1;
- }
+ }
+ }
break;
+#endif
#if INET6
case AF_INET6:
- return key_ismyaddr6(addr);
+ return key_ismyaddr6((struct sockaddr_in6 *)sa);
#endif
}
#include <netinet6/in6_var.h>
static int
-key_ismyaddr6(addr)
- caddr_t addr;
+key_ismyaddr6(sin6)
+ struct sockaddr_in6 *sin6;
{
- struct in6_addr *a = (struct in6_addr *)addr;
struct in6_ifaddr *ia;
+ struct in6_multi *in6m;
for (ia = in6_ifaddr; ia; ia = ia->ia_next) {
- if (bcmp(addr, (caddr_t)&ia->ia_addr.sin6_addr,
- _INALENBYAF(AF_INET6)) == 0) {
+ if (key_sockaddrcmp((struct sockaddr *)&sin6,
+ (struct sockaddr *)&ia->ia_addr, 0) == 0)
return 1;
- }
-
- /* XXX Multicast */
- {
- struct in6_multi *in6m = 0;
-#if defined(__FreeBSD__) && __FreeBSD__ >= 3 || defined (__APPLE__)
- IN6_LOOKUP_MULTI(*(struct in6_addr *)addr, ia->ia_ifp, in6m);
-#else
- for ((in6m) = ia->ia6_multiaddrs.lh_first;
- (in6m) != NULL &&
- !IN6_ARE_ADDR_EQUAL(&(in6m)->in6m_addr, a);
- (in6m) = in6m->in6m_entry.le_next)
- continue;
-#endif
+ /*
+ * XXX Multicast
+ * XXX why do we care about multlicast here while we don't care
+ * about IPv4 multicast??
+ * XXX scope
+ */
+ in6m = NULL;
+ IN6_LOOKUP_MULTI(sin6->sin6_addr, ia->ia_ifp, in6m);
if (in6m)
return 1;
- }
}
/* loopback, just for safety */
- if (IN6_IS_ADDR_LOOPBACK(a))
- return 1;
-
-#if 0
- /* FAITH */
- if (ip6_keepfaith &&
- (a->s6_addr32[0] == ip6_faith_prefix.s6_addr32[0] &&
- a->s6_addr32[1] == ip6_faith_prefix.s6_addr32[1] &&
- a->s6_addr32[2] == ip6_faith_prefix.s6_addr32[2]))
+ if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr))
return 1;
-#endif
-
- /* XXX anycast */
return 0;
}
#endif /*INET6*/
-#if 0
-/* checking address is whether loopback or not.
- * OUT: 1: true
- * 0: false
- */
-static int
-key_isloopback(family, addr)
- u_int family;
- caddr_t addr;
-{
- switch (family) {
- case PF_INET:
- if (((caddr_t)addr)[0] == IN_LOOPBACKNET)
- return 1;
- break;
-#if INET6
- case PF_INET6:
- if (IN6_IS_ADDR_LOOPBACK((struct in6_addr *)addr))
- return 1;
- break;
-#endif /* INET6 */
- default:
-#if IPSEC_DEBUG
- printf("key_isloopback: unknown address family=%d.\n", family);
-#endif
- return 0;
- }
-
- return 0;
-}
-#endif
-
-/*
- * compare two secasindex structure exactly.
- * IN:
- * saidx0: source, it can be in SAD.
- * saidx1: object.
- * OUT:
- * 1 : equal
- * 0 : not equal
- */
-static int
-key_cmpsaidx_exactly(saidx0, saidx1)
- struct secasindex *saidx0, *saidx1;
-{
- /* sanity */
- if (saidx0 == NULL && saidx1 == NULL)
- return 1;
-
- if (saidx0 == NULL || saidx1 == NULL)
- return 0;
-
- if (saidx0->proto != saidx1->proto
- || saidx0->mode != saidx1->mode
- || saidx0->reqid != saidx1->reqid)
- return 0;
-
- if (bcmp(&saidx0->src, &saidx1->src, saidx0->src.ss_len) != 0
- || bcmp(&saidx0->dst, &saidx1->dst, saidx0->dst.ss_len) != 0)
- return 0;
-
- return 1;
-}
-
/*
- * compare two secasindex structure with consideration mode.
+ * compare two secasindex structure.
+ * flag can specify to compare 2 saidxes.
+ * compare two secasindex structure without both mode and reqid.
* don't compare port.
- * IN:
- * saidx0: source, it is often in SAD.
- * saidx1: object, it is often from SPD.
- * OUT:
- * 1 : equal
- * 0 : not equal
+ * IN:
+ * saidx0: source, it can be in SAD.
+ * saidx1: object.
+ * OUT:
+ * 1 : equal
+ * 0 : not equal
*/
static int
-key_cmpsaidx_withmode(saidx0, saidx1)
+key_cmpsaidx(saidx0, saidx1, flag)
struct secasindex *saidx0, *saidx1;
+ int flag;
{
/* sanity */
if (saidx0 == NULL && saidx1 == NULL)
if (saidx0 == NULL || saidx1 == NULL)
return 0;
- if (saidx0->proto != saidx1->proto
- || saidx0->src.ss_family != saidx1->src.ss_family
- || saidx0->dst.ss_family != saidx1->dst.ss_family)
+ if (saidx0->proto != saidx1->proto)
return 0;
- /*
- * If reqid of SPD is non-zero, unique SA is required.
- * The result must be of same reqid in this case.
- */
- if (saidx1->reqid != 0
- && saidx0->reqid != saidx1->reqid)
- return 0;
+ if (flag == CMP_EXACTLY) {
+ if (saidx0->mode != saidx1->mode)
+ return 0;
+ if (saidx0->reqid != saidx1->reqid)
+ return 0;
+ if (bcmp(&saidx0->src, &saidx1->src, saidx0->src.ss_len) != 0 ||
+ bcmp(&saidx0->dst, &saidx1->dst, saidx0->dst.ss_len) != 0)
+ return 0;
+ } else {
- if (saidx0->mode != IPSEC_MODE_ANY
- && saidx0->mode != saidx1->mode)
- return 0;
+ /* CMP_MODE_REQID, CMP_REQID, CMP_HEAD */
+ if (flag == CMP_MODE_REQID
+ ||flag == CMP_REQID) {
+ /*
+ * If reqid of SPD is non-zero, unique SA is required.
+ * The result must be of same reqid in this case.
+ */
+ if (saidx1->reqid != 0 && saidx0->reqid != saidx1->reqid)
+ return 0;
+ }
- {
- int sa_len = _INALENBYAF(saidx0->src.ss_family);
+ if (flag == CMP_MODE_REQID) {
+ if (saidx0->mode != IPSEC_MODE_ANY
+ && saidx0->mode != saidx1->mode)
+ return 0;
+ }
- if (bcmp(_INADDRBYSA(&saidx0->src), _INADDRBYSA(&saidx1->src), sa_len)
- || bcmp(_INADDRBYSA(&saidx0->dst), _INADDRBYSA(&saidx1->dst), sa_len))
- return 0;
- }
+ if (key_sockaddrcmp((struct sockaddr *)&saidx0->src,
+ (struct sockaddr *)&saidx1->src, 0) != 0) {
+ return 0;
+ }
+ if (key_sockaddrcmp((struct sockaddr *)&saidx0->dst,
+ (struct sockaddr *)&saidx1->dst, 0) != 0) {
+ return 0;
+ }
+ }
return 1;
}
|| spidx0->ul_proto != spidx1->ul_proto)
return 0;
- if (bcmp(&spidx0->src, &spidx1->src, spidx0->src.ss_len) != 0
- || bcmp(&spidx0->dst, &spidx1->dst, spidx0->dst.ss_len) != 0)
+ if (key_sockaddrcmp((struct sockaddr *)&spidx0->src,
+ (struct sockaddr *)&spidx1->src, 1) != 0) {
return 0;
+ }
+ if (key_sockaddrcmp((struct sockaddr *)&spidx0->dst,
+ (struct sockaddr *)&spidx1->dst, 1) != 0) {
+ return 0;
+ }
return 1;
}
if (spidx0 == NULL || spidx1 == NULL)
return 0;
- if (spidx0->src.ss_family != spidx1->src.ss_family
- || spidx0->dst.ss_family != spidx1->dst.ss_family)
+ if (spidx0->src.ss_family != spidx1->src.ss_family ||
+ spidx0->dst.ss_family != spidx1->dst.ss_family ||
+ spidx0->src.ss_len != spidx1->src.ss_len ||
+ spidx0->dst.ss_len != spidx1->dst.ss_len)
return 0;
/* if spidx.ul_proto == IPSEC_ULPROTO_ANY, ignore. */
&& spidx0->ul_proto != spidx1->ul_proto)
return 0;
- if (_INPORTBYSA(&spidx0->src) != IPSEC_PORT_ANY
- && _INPORTBYSA(&spidx0->src) != _INPORTBYSA(&spidx1->src))
- return 0;
+ switch (spidx0->src.ss_family) {
+ case AF_INET:
+ if (satosin(&spidx0->src)->sin_port != IPSEC_PORT_ANY
+ && satosin(&spidx0->src)->sin_port !=
+ satosin(&spidx1->src)->sin_port)
+ return 0;
+ if (!key_bbcmp((caddr_t)&satosin(&spidx0->src)->sin_addr,
+ (caddr_t)&satosin(&spidx1->src)->sin_addr, spidx0->prefs))
+ return 0;
+ break;
+ case AF_INET6:
+ if (satosin6(&spidx0->src)->sin6_port != IPSEC_PORT_ANY
+ && satosin6(&spidx0->src)->sin6_port !=
+ satosin6(&spidx1->src)->sin6_port)
+ return 0;
+ /*
+ * scope_id check. if sin6_scope_id is 0, we regard it
+ * as a wildcard scope, which matches any scope zone ID.
+ */
+ if (satosin6(&spidx0->src)->sin6_scope_id &&
+ satosin6(&spidx1->src)->sin6_scope_id &&
+ satosin6(&spidx0->src)->sin6_scope_id !=
+ satosin6(&spidx1->src)->sin6_scope_id)
+ return 0;
+ if (!key_bbcmp((caddr_t)&satosin6(&spidx0->src)->sin6_addr,
+ (caddr_t)&satosin6(&spidx1->src)->sin6_addr, spidx0->prefs))
+ return 0;
+ break;
+ default:
+ /* XXX */
+ if (bcmp(&spidx0->src, &spidx1->src, spidx0->src.ss_len) != 0)
+ return 0;
+ break;
+ }
- if (_INPORTBYSA(&spidx0->dst) != IPSEC_PORT_ANY
- && _INPORTBYSA(&spidx0->dst) != _INPORTBYSA(&spidx1->dst))
- return 0;
+ switch (spidx0->dst.ss_family) {
+ case AF_INET:
+ if (satosin(&spidx0->dst)->sin_port != IPSEC_PORT_ANY
+ && satosin(&spidx0->dst)->sin_port !=
+ satosin(&spidx1->dst)->sin_port)
+ return 0;
+ if (!key_bbcmp((caddr_t)&satosin(&spidx0->dst)->sin_addr,
+ (caddr_t)&satosin(&spidx1->dst)->sin_addr, spidx0->prefd))
+ return 0;
+ break;
+ case AF_INET6:
+ if (satosin6(&spidx0->dst)->sin6_port != IPSEC_PORT_ANY
+ && satosin6(&spidx0->dst)->sin6_port !=
+ satosin6(&spidx1->dst)->sin6_port)
+ return 0;
+ /*
+ * scope_id check. if sin6_scope_id is 0, we regard it
+ * as a wildcard scope, which matches any scope zone ID.
+ */
+ if (satosin6(&spidx0->src)->sin6_scope_id &&
+ satosin6(&spidx1->src)->sin6_scope_id &&
+ satosin6(&spidx0->dst)->sin6_scope_id !=
+ satosin6(&spidx1->dst)->sin6_scope_id)
+ return 0;
+ if (!key_bbcmp((caddr_t)&satosin6(&spidx0->dst)->sin6_addr,
+ (caddr_t)&satosin6(&spidx1->dst)->sin6_addr, spidx0->prefd))
+ return 0;
+ break;
+ default:
+ /* XXX */
+ if (bcmp(&spidx0->dst, &spidx1->dst, spidx0->dst.ss_len) != 0)
+ return 0;
+ break;
+ }
- if (!key_bbcmp(_INADDRBYSA(&spidx0->src),
- _INADDRBYSA(&spidx1->src),
- spidx0->prefs))
- return 0;
+ /* XXX Do we check other field ? e.g. flowinfo */
- if (!key_bbcmp(_INADDRBYSA(&spidx0->dst),
- _INADDRBYSA(&spidx1->dst),
- spidx0->prefd))
- return 0;
+ return 1;
+}
- /* XXX Do we check other field ? e.g. flowinfo, scope_id. */
+/* returns 0 on match */
+static int
+key_sockaddrcmp(sa1, sa2, port)
+ struct sockaddr *sa1;
+ struct sockaddr *sa2;
+ int port;
+{
+ if (sa1->sa_family != sa2->sa_family || sa1->sa_len != sa2->sa_len)
+ return 1;
- return 1;
+ switch (sa1->sa_family) {
+ case AF_INET:
+ if (sa1->sa_len != sizeof(struct sockaddr_in))
+ return 1;
+ if (satosin(sa1)->sin_addr.s_addr !=
+ satosin(sa2)->sin_addr.s_addr) {
+ return 1;
+ }
+ if (port && satosin(sa1)->sin_port != satosin(sa2)->sin_port)
+ return 1;
+ break;
+ case AF_INET6:
+ if (sa1->sa_len != sizeof(struct sockaddr_in6))
+ return 1; /*EINVAL*/
+ if (satosin6(sa1)->sin6_scope_id !=
+ satosin6(sa2)->sin6_scope_id) {
+ return 1;
+ }
+ if (!IN6_ARE_ADDR_EQUAL(&satosin6(sa1)->sin6_addr,
+ &satosin6(sa2)->sin6_addr)) {
+ return 1;
+ }
+ if (port &&
+ satosin6(sa1)->sin6_port != satosin6(sa2)->sin6_port) {
+ return 1;
+ }
+ default:
+ if (bcmp(sa1, sa2, sa1->sa_len) != 0)
+ return 1;
+ break;
+ }
+
+ return 0;
}
/*
*/
static int
key_bbcmp(p1, p2, bits)
- register caddr_t p1, p2;
- register u_int bits;
+ caddr_t p1, p2;
+ u_int bits;
{
u_int8_t mask;
* time handler.
* scanning SPD and SAD to check status for each entries,
* and do to remove or to expire.
+ * XXX: year 2038 problem may remain.
*/
+void
+key_timehandler_funnel(void)
+{
+#ifdef __APPLE__
+ boolean_t funnel_state;
+ funnel_state = thread_funnel_set(network_flock, TRUE);
+#endif
+ key_timehandler();
+#ifdef __APPLE__
+ (void) thread_funnel_set(network_flock, FALSE);
+#endif
+}
+
void
key_timehandler(void)
{
u_int dir;
int s;
+ struct timeval tv;
+
+ microtime(&tv);
- thread_funnel_set(network_flock, TRUE);
-#if __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
/* SPD */
{
nextsp = LIST_NEXT(sp, chain);
- if (sp->state == IPSEC_SPSTATE_DEAD)
+ if (sp->state == IPSEC_SPSTATE_DEAD) {
key_freesp(sp);
+ continue;
+ }
+
+ if (sp->lifetime == 0 && sp->validtime == 0)
+ continue;
+
+ /* the deletion will occur next time */
+ if ((sp->lifetime
+ && tv.tv_sec - sp->created > sp->lifetime)
+ || (sp->validtime
+ && tv.tv_sec - sp->lastused > sp->validtime)) {
+ sp->state = IPSEC_SPSTATE_DEAD;
+ key_spdexpire(sp);
+ continue;
+ }
}
}
}
nextsav = LIST_NEXT(sav, chain);
- sav->tick++;
-
- if (key_larval_lifetime < sav->tick) {
+ if (tv.tv_sec - sav->created > key_larval_lifetime) {
key_freesav(sav);
}
}
-
+
+ /*
+ * If this is a NAT traversal SA with no activity,
+ * we need to send a keep alive.
+ *
+ * Performed outside of the loop before so we will
+ * only ever send one keepalive. The first SA on
+ * the list is the one that will be used for sending
+ * traffic, so this is the one we use for determining
+ * when to send the keepalive.
+ */
+ sav = LIST_FIRST(&sah->savtree[SADB_SASTATE_MATURE]);
+ if (natt_keepalive_interval && sav && (sav->flags & SADB_X_EXT_NATT_KEEPALIVE) != 0 &&
+ (natt_now - sav->natt_last_activity) >= natt_keepalive_interval) {
+ ipsec_send_natt_keepalive(sav);
+ }
+
/*
* check MATURE entry to start to send expire message
* whether or not.
nextsav = LIST_NEXT(sav, chain);
- sav->tick++;
-
/* we don't need to check. */
if (sav->lft_s == NULL)
continue;
/* sanity check */
if (sav->lft_c == NULL) {
-#if IPSEC_DEBUG
- printf("key_timehandler: "
- "There is no CURRENT time, why?\n");
-#endif
+ ipseclog((LOG_DEBUG,"key_timehandler: "
+ "There is no CURRENT time, why?\n"));
continue;
}
- /* compare SOFT lifetime and tick */
+ /* check SOFT lifetime */
if (sav->lft_s->sadb_lifetime_addtime != 0
- && sav->lft_s->sadb_lifetime_addtime < sav->tick) {
+ && tv.tv_sec - sav->created > sav->lft_s->sadb_lifetime_addtime) {
/*
- * check SA to be used whether or not.
- * when SA hasn't been used, delete it.
+ * check the SA if it has been used.
+ * when it hasn't been used, delete it.
+ * i don't think such SA will be used.
*/
if (sav->lft_c->sadb_lifetime_usetime == 0) {
key_sa_chgstate(sav, SADB_SASTATE_DEAD);
key_expire(sav);
}
}
+
/* check SOFT lifetime by bytes */
/*
* XXX I don't know the way to delete this SA
nextsav = LIST_NEXT(sav, chain);
- sav->tick++;
-
/* we don't need to check. */
if (sav->lft_h == NULL)
continue;
/* sanity check */
if (sav->lft_c == NULL) {
-#if IPSEC_DEBUG
- printf("key_timehandler: "
- "There is no CURRENT time, why?\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_timehandler: "
+ "There is no CURRENT time, why?\n"));
continue;
}
- /* compare HARD lifetime and tick */
if (sav->lft_h->sadb_lifetime_addtime != 0
- && sav->lft_h->sadb_lifetime_addtime < sav->tick) {
+ && tv.tv_sec - sav->created > sav->lft_h->sadb_lifetime_addtime) {
key_sa_chgstate(sav, SADB_SASTATE_DEAD);
key_freesav(sav);
sav = NULL;
#if 0 /* XXX Should we keep to send expire message until HARD lifetime ? */
else if (sav->lft_s != NULL
&& sav->lft_s->sadb_lifetime_addtime != 0
- && sav->lft_s->sadb_lifetime_addtime < sav->tick) {
+ && tv.tv_sec - sav->created > sav->lft_s->sadb_lifetime_addtime) {
/*
* XXX: should be checked to be
* installed the valid SA.
/* sanity check */
if (sav->state != SADB_SASTATE_DEAD) {
-#if IPSEC_DEBUG
- printf("key_timehandler: "
+ ipseclog((LOG_DEBUG, "key_timehandler: "
"invalid sav->state "
"(queue: %d SA: %d): "
"kill it anyway\n",
- SADB_SASTATE_DEAD, sav->state);
-#endif
+ SADB_SASTATE_DEAD, sav->state));
}
/*
nextacq = LIST_NEXT(acq, chain);
- acq->tick++;
-
- if (key_blockacq_lifetime < acq->tick && __LIST_CHAINED(acq)) {
+ if (tv.tv_sec - acq->created > key_blockacq_lifetime
+ && __LIST_CHAINED(acq)) {
LIST_REMOVE(acq, chain);
KFREE(acq);
}
nextacq = LIST_NEXT(acq, chain);
- acq->tick++;
-
- if (key_blockacq_lifetime < acq->tick && __LIST_CHAINED(acq)) {
+ if (tv.tv_sec - acq->created > key_blockacq_lifetime
+ && __LIST_CHAINED(acq)) {
LIST_REMOVE(acq, chain);
KFREE(acq);
}
key_tick_init_random = 0;
key_srandom();
}
+
+ natt_now++;
#ifndef IPSEC_DEBUG2
/* do exchange to tick time !! */
- (void)timeout((void *)key_timehandler, (void *)0, 100);
+ (void)timeout((void *)key_timehandler_funnel, (void *)0, hz);
#endif /* IPSEC_DEBUG2 */
splx(s);
- thread_funnel_set(network_funnel, FALSE);
return;
}
/*
* to initialize a seed for random()
*/
-void
+static void
key_srandom()
{
+#ifdef __APPLE__
+ /* Our PRNG is based on Yarrow and doesn't need to be seeded */
+ random();
+#else
struct timeval tv;
-#ifdef __bsdi__
- extern long randseed; /* it's defined at i386/i386/random.s */
-#endif /* __bsdi__ */
microtime(&tv);
-#if defined(__FreeBSD__)
srandom(tv.tv_usec);
-#endif /* __FreeBSD__ */
-#if defined(__APPLE__)
- random();
#endif
-#ifdef __bsdi__
- randseed = tv.tv_usec;
-#endif /* __bsdi__ */
return;
}
+u_long
+key_random()
+{
+ u_long value;
+
+ key_randomfill(&value, sizeof(value));
+ return value;
+}
+
+void
+key_randomfill(p, l)
+ void *p;
+ size_t l;
+{
+ size_t n;
+ u_long v;
+ static int warn = 1;
+#ifdef __APPLE__
+
+ read_random(p, (u_int)l);
+#else
+ n = 0;
+ n = (size_t)read_random(p, (u_int)l);
+ /* last resort */
+ while (n < l) {
+ v = random();
+ bcopy(&v, (u_int8_t *)p + n,
+ l - n < sizeof(v) ? l - n : sizeof(v));
+ n += sizeof(v);
+
+ if (warn) {
+ printf("WARNING: pseudo-random number generator "
+ "used for IPsec processing\n");
+ warn = 0;
+ }
+ }
+#endif
+}
+
/*
* map SADB_SATYPE_* to IPPROTO_*.
* if satype == SADB_SATYPE then satype is mapped to ~0.
return IPPROTO_AH;
case SADB_SATYPE_ESP:
return IPPROTO_ESP;
-#if 1 /*nonstandard*/
case SADB_X_SATYPE_IPCOMP:
return IPPROTO_IPCOMP;
break;
-#endif
default:
return 0;
}
return SADB_SATYPE_AH;
case IPPROTO_ESP:
return SADB_SATYPE_ESP;
-#if 1 /*nonstandard*/
case IPPROTO_IPCOMP:
return SADB_X_SATYPE_IPCOMP;
break;
-#endif
default:
return 0;
}
/* %%% PF_KEY */
/*
* SADB_GETSPI processing is to receive
- * <base, src address, dst address, (SPI range)>
+ * <base, (SA2), src address, dst address, (SPI range)>
* from the IKMPd, to assign a unique spi value, to hang on the INBOUND
* tree with the status of LARVAL, and send
* <base, SA(*), address(SD)>
* OUT: NULL if fail.
* other if success, return pointer to the message to send.
*/
-static struct sadb_msg *
-key_getspi(mhp)
- caddr_t *mhp;
+static int
+key_getspi(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *newsah;
struct secasvar *newsav;
u_int8_t proto;
u_int32_t spi;
+ u_int8_t mode;
+ u_int32_t reqid;
+ int error;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_getspi: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
- if (mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL) {
-#if IPSEC_DEBUG
- printf("key_getspi: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL) {
+ ipseclog((LOG_DEBUG, "key_getspi: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address)) {
+ ipseclog((LOG_DEBUG, "key_getspi: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->ext[SADB_X_EXT_SA2] != NULL) {
+ mode = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_mode;
+ reqid = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_reqid;
+ } else {
+ mode = IPSEC_MODE_ANY;
+ reqid = 0;
}
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
+ src0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_SRC]);
+ dst0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_DST]);
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_getspi: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_getspi: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ /* make sure if port number is zero. */
+ switch (((struct sockaddr *)(src0 + 1))->sa_family) {
+ case AF_INET:
+ if (((struct sockaddr *)(src0 + 1))->sa_len !=
+ sizeof(struct sockaddr_in))
+ return key_senderror(so, m, EINVAL);
+ ((struct sockaddr_in *)(src0 + 1))->sin_port = 0;
+ break;
+ case AF_INET6:
+ if (((struct sockaddr *)(src0 + 1))->sa_len !=
+ sizeof(struct sockaddr_in6))
+ return key_senderror(so, m, EINVAL);
+ ((struct sockaddr_in6 *)(src0 + 1))->sin6_port = 0;
+ break;
+ default:
+ ; /*???*/
+ }
+ switch (((struct sockaddr *)(dst0 + 1))->sa_family) {
+ case AF_INET:
+ if (((struct sockaddr *)(dst0 + 1))->sa_len !=
+ sizeof(struct sockaddr_in))
+ return key_senderror(so, m, EINVAL);
+ ((struct sockaddr_in *)(dst0 + 1))->sin_port = 0;
+ break;
+ case AF_INET6:
+ if (((struct sockaddr *)(dst0 + 1))->sa_len !=
+ sizeof(struct sockaddr_in6))
+ return key_senderror(so, m, EINVAL);
+ ((struct sockaddr_in6 *)(dst0 + 1))->sin6_port = 0;
+ break;
+ default:
+ ; /*???*/
+ }
+
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, mode, reqid, src0 + 1, dst0 + 1, &saidx);
/* SPI allocation */
- spi = key_do_getnewspi((struct sadb_spirange *)mhp[SADB_EXT_SPIRANGE],
+ spi = key_do_getnewspi((struct sadb_spirange *)mhp->ext[SADB_EXT_SPIRANGE],
&saidx);
- if (spi == 0) {
- msg0->sadb_msg_errno = EEXIST;
- return NULL;
- }
+ if (spi == 0)
+ return key_senderror(so, m, EINVAL);
/* get a SA index */
if ((newsah = key_getsah(&saidx)) == NULL) {
-
/* create a new SA index */
if ((newsah = key_newsah(&saidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_getspi: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_getspi: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
}
/* get a new SA */
- if ((newsav = key_newsav(mhp, newsah)) == NULL) {
- msg0->sadb_msg_errno = ENOBUFS;
+ /* XXX rewrite */
+ newsav = key_newsav(m, mhp, newsah, &error);
+ if (newsav == NULL) {
/* XXX don't free new SA index allocated in above. */
- return NULL;
+ return key_senderror(so, m, error);
}
/* set spi */
#ifndef IPSEC_NONBLOCK_ACQUIRE
/* delete the entry in acqtree */
- if (msg0->sadb_msg_seq != 0) {
+ if (mhp->msg->sadb_msg_seq != 0) {
struct secacq *acq;
- if ((acq = key_getacqbyseq(msg0->sadb_msg_seq)) != NULL) {
- /* reset counter in order to deletion by timehander. */
- acq->tick = key_blockacq_lifetime;
+ if ((acq = key_getacqbyseq(mhp->msg->sadb_msg_seq)) != NULL) {
+ /* reset counter in order to deletion by timehandler. */
+ struct timeval tv;
+ microtime(&tv);
+ acq->created = tv.tv_sec;
acq->count = 0;
}
}
#endif
{
+ struct mbuf *n, *nn;
+ struct sadb_sa *m_sa;
struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ int off, len;
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_sa)
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_SRC])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_DST]);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_getspi: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ len = PFKEY_ALIGN8(sizeof(struct sadb_msg)) +
+ PFKEY_ALIGN8(sizeof(struct sadb_sa));
+ if (len > MCLBYTES)
+ return key_senderror(so, m, ENOBUFS);
+
+ MGETHDR(n, M_DONTWAIT, MT_DATA);
+ if (len > MHLEN) {
+ MCLGET(n, M_DONTWAIT);
+ if ((n->m_flags & M_EXT) == 0) {
+ m_freem(n);
+ n = NULL;
+ }
}
- bzero((caddr_t)newmsg, len);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
- newmsg->sadb_msg_seq = newsav->seq;
- newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
+ n->m_len = len;
+ n->m_next = NULL;
+ off = 0;
- {
- struct sadb_sa *m_sa;
- m_sa = (struct sadb_sa *)p;
+ m_copydata(m, 0, sizeof(struct sadb_msg), mtod(n, caddr_t) + off);
+ off += PFKEY_ALIGN8(sizeof(struct sadb_msg));
+
+ m_sa = (struct sadb_sa *)(mtod(n, caddr_t) + off);
m_sa->sadb_sa_len = PFKEY_UNIT64(sizeof(struct sadb_sa));
m_sa->sadb_sa_exttype = SADB_EXT_SA;
m_sa->sadb_sa_spi = htonl(spi);
- p += sizeof(struct sadb_sa);
- }
+ off += PFKEY_ALIGN8(sizeof(struct sadb_sa));
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_SRC]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_DST]);
+#if DIAGNOSTIC
+ if (off != len)
+ panic("length inconsistency in key_getspi");
+#endif
+ {
+ int mbufItems[] = {SADB_EXT_ADDRESS_SRC, SADB_EXT_ADDRESS_DST};
+ n->m_next = key_gather_mbuf(m, mhp, 0, sizeof(mbufItems)/sizeof(int), mbufItems);
+ if (!n->m_next) {
+ m_freem(n);
+ return key_senderror(so, m, ENOBUFS);
+ }
+ }
- return newmsg;
- }
-}
+ if (n->m_len < sizeof(struct sadb_msg)) {
+ n = m_pullup(n, sizeof(struct sadb_msg));
+ if (n == NULL)
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ONE);
+ }
-/*
- * allocating new SPI
+ n->m_pkthdr.len = 0;
+ for (nn = n; nn; nn = nn->m_next)
+ n->m_pkthdr.len += nn->m_len;
+
+ newmsg = mtod(n, struct sadb_msg *);
+ newmsg->sadb_msg_seq = newsav->seq;
+ newmsg->sadb_msg_errno = 0;
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
+
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ONE);
+ }
+}
+
+/*
+ * allocating new SPI
* called by key_getspi().
* OUT:
* 0: failure.
if (min == max) {
if (key_checkspidup(saidx, min) != NULL) {
-#if IPSEC_DEBUG
- printf("key_do_getnewspi: SPI %u exists already.\n", min);
-#endif
+ ipseclog((LOG_DEBUG, "key_do_getnewspi: SPI %u exists already.\n", min));
return 0;
}
/* when requesting to allocate spi ranged */
while (count--) {
/* generate pseudo-random SPI value ranged. */
- newspi = min + (random() % ( max - min + 1 ));
+ newspi = min + (key_random() % (max - min + 1));
if (key_checkspidup(saidx, newspi) == NULL)
break;
}
if (count == 0 || newspi == 0) {
-#if IPSEC_DEBUG
- printf("key_do_getnewspi: to allocate spi is failed.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_do_getnewspi: to allocate spi is failed.\n"));
return 0;
}
}
/*
* SADB_UPDATE processing
* receive
- * <base, SA, (lifetime(HSC),) address(SD), (address(P),)
+ * <base, SA, (SA2), (lifetime(HSC),) address(SD), (address(P),)
* key(AE), (identity(SD),) (sensitivity)>
* from the ikmpd, and update a secasvar entry whose status is SADB_SASTATE_LARVAL.
* and send
- * <base, SA, (lifetime(HSC),) address(SD), (address(P),)
+ * <base, SA, (SA2), (lifetime(HSC),) address(SD), (address(P),)
* (identity(SD),) (sensitivity)>
* to the ikmpd.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_update(mhp)
- caddr_t *mhp;
+static int
+key_update(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_sa *sa0;
struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *sah;
struct secasvar *sav;
u_int16_t proto;
+ u_int8_t mode;
+ u_int32_t reqid;
+ int error;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_update: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_update: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
- }
-
- if (mhp[SADB_EXT_SA] == NULL
- || mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL
- || (msg0->sadb_msg_satype == SADB_SATYPE_ESP
- && mhp[SADB_EXT_KEY_ENCRYPT] == NULL)
- || (msg0->sadb_msg_satype == SADB_SATYPE_AH
- && mhp[SADB_EXT_KEY_AUTH] == NULL)
- || (mhp[SADB_EXT_LIFETIME_HARD] != NULL
- && mhp[SADB_EXT_LIFETIME_SOFT] == NULL)
- || (mhp[SADB_EXT_LIFETIME_HARD] == NULL
- && mhp[SADB_EXT_LIFETIME_SOFT] != NULL)) {
-#if IPSEC_DEBUG
- printf("key_update: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_update: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+
+ if (mhp->ext[SADB_EXT_SA] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL ||
+ (mhp->msg->sadb_msg_satype == SADB_SATYPE_ESP &&
+ mhp->ext[SADB_EXT_KEY_ENCRYPT] == NULL) ||
+ (mhp->msg->sadb_msg_satype == SADB_SATYPE_AH &&
+ mhp->ext[SADB_EXT_KEY_AUTH] == NULL) ||
+ (mhp->ext[SADB_EXT_LIFETIME_HARD] != NULL &&
+ mhp->ext[SADB_EXT_LIFETIME_SOFT] == NULL) ||
+ (mhp->ext[SADB_EXT_LIFETIME_HARD] == NULL &&
+ mhp->ext[SADB_EXT_LIFETIME_SOFT] != NULL)) {
+ ipseclog((LOG_DEBUG, "key_update: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_SA] < sizeof(struct sadb_sa) ||
+ mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address)) {
+ ipseclog((LOG_DEBUG, "key_update: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->ext[SADB_X_EXT_SA2] != NULL) {
+ mode = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_mode;
+ reqid = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_reqid;
+ } else {
+ mode = IPSEC_MODE_ANY;
+ reqid = 0;
}
+ /* XXX boundary checking for other extensions */
- sa0 = (struct sadb_sa *)mhp[SADB_EXT_SA];
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
+ sa0 = (struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ src0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_SRC]);
+ dst0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_DST]);
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, mode, reqid, src0 + 1, dst0 + 1, &saidx);
/* get a SA header */
if ((sah = key_getsah(&saidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_update: no SA index found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_update: no SA index found.\n"));
+ return key_senderror(so, m, ENOENT);
}
/* set spidx if there */
- if (key_setident(sah, mhp) < 0)
- return NULL;
+ /* XXX rewrite */
+ error = key_setident(sah, m, mhp);
+ if (error)
+ return key_senderror(so, m, error);
/* find a SA with sequence number. */
#if IPSEC_DOSEQCHECK
- if (msg0->sadb_msg_seq != 0
- && (sav = key_getsavbyseq(sah, msg0->sadb_msg_seq)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_update: no larval SA with sequence %u exists.\n",
- msg0->sadb_msg_seq);
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ if (mhp->msg->sadb_msg_seq != 0
+ && (sav = key_getsavbyseq(sah, mhp->msg->sadb_msg_seq)) == NULL) {
+ ipseclog((LOG_DEBUG,
+ "key_update: no larval SA with sequence %u exists.\n",
+ mhp->msg->sadb_msg_seq));
+ return key_senderror(so, m, ENOENT);
}
#else
if ((sav = key_getsavbyspi(sah, sa0->sadb_sa_spi)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_update: no such a SA found (spi:%u)\n",
- (u_int32_t)ntohl(sa0->sadb_sa_spi));
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG,
+ "key_update: no such a SA found (spi:%u)\n",
+ (u_int32_t)ntohl(sa0->sadb_sa_spi)));
+ return key_senderror(so, m, EINVAL);
}
#endif
/* validity check */
if (sav->sah->saidx.proto != proto) {
-#if IPSEC_DEBUG
- printf("key_update: protocol mismatched (DB=%u param=%u)\n",
- sav->sah->saidx.proto, proto);
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG,
+ "key_update: protocol mismatched (DB=%u param=%u)\n",
+ sav->sah->saidx.proto, proto));
+ return key_senderror(so, m, EINVAL);
}
#if IPSEC_DOSEQCHECK
if (sav->spi != sa0->sadb_sa_spi) {
-#if IPSEC_DEBUG
- printf("key_update: SPI mismatched (DB:%u param:%u)\n",
- (u_int32_t)ntohl(sav->spi),
- (u_int32_t)ntohl(sa0->sadb_sa_spi));
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG,
+ "key_update: SPI mismatched (DB:%u param:%u)\n",
+ (u_int32_t)ntohl(sav->spi),
+ (u_int32_t)ntohl(sa0->sadb_sa_spi)));
+ return key_senderror(so, m, EINVAL);
}
#endif
- if (sav->pid != msg0->sadb_msg_pid) {
-#if IPSEC_DEBUG
- printf("key_update: pid mismatched (DB:%u param:%u)\n",
- sav->pid, msg0->sadb_msg_pid);
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (sav->pid != mhp->msg->sadb_msg_pid) {
+ ipseclog((LOG_DEBUG,
+ "key_update: pid mismatched (DB:%u param:%u)\n",
+ sav->pid, mhp->msg->sadb_msg_pid));
+ return key_senderror(so, m, EINVAL);
}
/* copy sav values */
- if (key_setsaval(sav, mhp)) {
+ error = key_setsaval(sav, m, mhp);
+ if (error) {
key_freesav(sav);
- return NULL;
+ return key_senderror(so, m, error);
}
/* check SA values to be mature. */
- if ((msg0->sadb_msg_errno = key_mature(sav)) != 0) {
+ if ((mhp->msg->sadb_msg_errno = key_mature(sav)) != 0) {
key_freesav(sav);
- return NULL;
+ return key_senderror(so, m, 0);
}
{
- struct sadb_msg *newmsg;
+ struct mbuf *n;
/* set msg buf from mhp */
- if ((newmsg = key_getmsgbuf_x1(mhp)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_update: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ n = key_getmsgbuf_x1(m, mhp);
+ if (n == NULL) {
+ ipseclog((LOG_DEBUG, "key_update: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
- return newmsg;
+
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
/*
* SADB_ADD processing
* add a entry to SA database, when received
- * <base, SA, (lifetime(HSC),) address(SD), (address(P),)
+ * <base, SA, (SA2), (lifetime(HSC),) address(SD), (address(P),)
* key(AE), (identity(SD),) (sensitivity)>
* from the ikmpd,
* and send
- * <base, SA, (lifetime(HSC),) address(SD), (address(P),)
+ * <base, SA, (SA2), (lifetime(HSC),) address(SD), (address(P),)
* (identity(SD),) (sensitivity)>
* to the ikmpd.
*
* IGNORE identity and sensitivity messages.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_add(mhp)
- caddr_t *mhp;
+static int
+key_add(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_sa *sa0;
struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *newsah;
struct secasvar *newsav;
u_int16_t proto;
+ u_int8_t mode;
+ u_int32_t reqid;
+ int error;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_add: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_add: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
- }
-
- if (mhp[SADB_EXT_SA] == NULL
- || mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL
- || (msg0->sadb_msg_satype == SADB_SATYPE_ESP
- && mhp[SADB_EXT_KEY_ENCRYPT] == NULL)
- || (msg0->sadb_msg_satype == SADB_SATYPE_AH
- && mhp[SADB_EXT_KEY_AUTH] == NULL)
- || (mhp[SADB_EXT_LIFETIME_HARD] != NULL
- && mhp[SADB_EXT_LIFETIME_SOFT] == NULL)
- || (mhp[SADB_EXT_LIFETIME_HARD] == NULL
- && mhp[SADB_EXT_LIFETIME_SOFT] != NULL)) {
-#if IPSEC_DEBUG
- printf("key_add: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_add: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+
+ if (mhp->ext[SADB_EXT_SA] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL ||
+ (mhp->msg->sadb_msg_satype == SADB_SATYPE_ESP &&
+ mhp->ext[SADB_EXT_KEY_ENCRYPT] == NULL) ||
+ (mhp->msg->sadb_msg_satype == SADB_SATYPE_AH &&
+ mhp->ext[SADB_EXT_KEY_AUTH] == NULL) ||
+ (mhp->ext[SADB_EXT_LIFETIME_HARD] != NULL &&
+ mhp->ext[SADB_EXT_LIFETIME_SOFT] == NULL) ||
+ (mhp->ext[SADB_EXT_LIFETIME_HARD] == NULL &&
+ mhp->ext[SADB_EXT_LIFETIME_SOFT] != NULL)) {
+ ipseclog((LOG_DEBUG, "key_add: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_SA] < sizeof(struct sadb_sa) ||
+ mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address)) {
+ /* XXX need more */
+ ipseclog((LOG_DEBUG, "key_add: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->ext[SADB_X_EXT_SA2] != NULL) {
+ mode = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_mode;
+ reqid = ((struct sadb_x_sa2 *)mhp->ext[SADB_X_EXT_SA2])->sadb_x_sa2_reqid;
+ } else {
+ mode = IPSEC_MODE_ANY;
+ reqid = 0;
}
- sa0 = (struct sadb_sa *)mhp[SADB_EXT_SA];
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
+ sa0 = (struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ src0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_SRC];
+ dst0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_DST];
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, mode, reqid, src0 + 1, dst0 + 1, &saidx);
/* get a SA header */
if ((newsah = key_getsah(&saidx)) == NULL) {
-
/* create a new SA header */
if ((newsah = key_newsah(&saidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_add: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_add: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
}
/* set spidx if there */
- if (key_setident(newsah, mhp) < 0)
- return NULL;
+ /* XXX rewrite */
+ error = key_setident(newsah, m, mhp);
+ if (error) {
+ return key_senderror(so, m, error);
+ }
/* create new SA entry. */
/* We can create new SA only if SPI is differenct. */
if (key_getsavbyspi(newsah, sa0->sadb_sa_spi)) {
-#if IPSEC_DEBUG
- printf("key_add: SA already exists.\n");
-#endif
- msg0->sadb_msg_errno = EEXIST;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_add: SA already exists.\n"));
+ return key_senderror(so, m, EEXIST);
+ }
+ newsav = key_newsav(m, mhp, newsah, &error);
+ if (newsav == NULL) {
+ return key_senderror(so, m, error);
}
- if ((newsav = key_newsav(mhp, newsah)) == NULL)
- return NULL;
/* check SA values to be mature. */
- if ((msg0->sadb_msg_errno = key_mature(newsav)) != NULL) {
+ if ((error = key_mature(newsav)) != 0) {
key_freesav(newsav);
- return NULL;
+ return key_senderror(so, m, error);
}
/*
*/
{
- struct sadb_msg *newmsg;
+ struct mbuf *n;
/* set msg buf from mhp */
- if ((newmsg = key_getmsgbuf_x1(mhp)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_add: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ n = key_getmsgbuf_x1(m, mhp);
+ if (n == NULL) {
+ ipseclog((LOG_DEBUG, "key_update: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
- return newmsg;
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
+/* m is retained */
static int
-key_setident(sah, mhp)
+key_setident(sah, m, mhp)
struct secashead *sah;
- caddr_t *mhp;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
- struct sadb_ident *idsrc, *iddst;
+ const struct sadb_ident *idsrc, *iddst;
int idsrclen, iddstlen;
/* sanity check */
- if (sah == NULL || mhp == NULL || mhp[0] == NULL)
+ if (sah == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_setident: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* don't make buffer if not there */
- if (mhp[SADB_EXT_IDENTITY_SRC] == NULL
- && mhp[SADB_EXT_IDENTITY_DST] == NULL) {
+ if (mhp->ext[SADB_EXT_IDENTITY_SRC] == NULL &&
+ mhp->ext[SADB_EXT_IDENTITY_DST] == NULL) {
sah->idents = NULL;
sah->identd = NULL;
return 0;
}
- if (mhp[SADB_EXT_IDENTITY_SRC] == NULL
- || mhp[SADB_EXT_IDENTITY_DST] == NULL) {
-#if IPSEC_DEBUG
- printf("key_setident: invalid identity.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return -1;
+ if (mhp->ext[SADB_EXT_IDENTITY_SRC] == NULL ||
+ mhp->ext[SADB_EXT_IDENTITY_DST] == NULL) {
+ ipseclog((LOG_DEBUG, "key_setident: invalid identity.\n"));
+ return EINVAL;
}
- idsrc = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_SRC];
- iddst = (struct sadb_ident *)mhp[SADB_EXT_IDENTITY_DST];
- idsrclen = PFKEY_UNUNIT64(idsrc->sadb_ident_len);
- iddstlen = PFKEY_UNUNIT64(idsrc->sadb_ident_len);
+ idsrc = (const struct sadb_ident *)mhp->ext[SADB_EXT_IDENTITY_SRC];
+ iddst = (const struct sadb_ident *)mhp->ext[SADB_EXT_IDENTITY_DST];
+ idsrclen = mhp->extlen[SADB_EXT_IDENTITY_SRC];
+ iddstlen = mhp->extlen[SADB_EXT_IDENTITY_DST];
/* validity check */
if (idsrc->sadb_ident_type != iddst->sadb_ident_type) {
-#if IPSEC_DEBUG
- printf("key_setident: ident type mismatch.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return -1;
+ ipseclog((LOG_DEBUG, "key_setident: ident type mismatch.\n"));
+ return EINVAL;
}
switch (idsrc->sadb_ident_type) {
- case SADB_X_IDENTTYPE_ADDR:
- if (idsrclen !=
- sizeof(*idsrc) + ((struct sockaddr *)(idsrc + 1))->sa_len
- || iddstlen !=
- sizeof(*iddst) + ((struct sockaddr *)(iddst + 1))->sa_len) {
-#if IPSEC_DEBUG
- printf("key_setident: invalid length is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return -1;
- }
- if (((struct sockaddr *)(idsrc + 1))->sa_len >
- sizeof(struct sockaddr_storage)
- || ((struct sockaddr *)(iddst + 1))->sa_len >
- sizeof(struct sockaddr_storage)) {
-#if IPSEC_DEBUG
- printf("key_setident: invalid sa_len is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return -1;
- }
-#define __IDENTXID(a) ((union sadb_x_ident_id *)&(a)->sadb_ident_id)
- if (__IDENTXID(idsrc)->sadb_x_ident_id_addr.ul_proto
- != __IDENTXID(iddst)->sadb_x_ident_id_addr.ul_proto) {
-#if IPSEC_DEBUG
- printf("key_setident: ul_proto mismatch.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return -1;
- }
-#undef __IDENTXID(a)
- break;
case SADB_IDENTTYPE_PREFIX:
case SADB_IDENTTYPE_FQDN:
case SADB_IDENTTYPE_USERFQDN:
/* make structure */
KMALLOC(sah->idents, struct sadb_ident *, idsrclen);
if (sah->idents == NULL) {
-#if IPSEC_DEBUG
- printf("key_setident: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return -1;
+ ipseclog((LOG_DEBUG, "key_setident: No more memory.\n"));
+ return ENOBUFS;
}
KMALLOC(sah->identd, struct sadb_ident *, iddstlen);
if (sah->identd == NULL) {
KFREE(sah->idents);
-#if IPSEC_DEBUG
- printf("key_setident: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return -1;
+ sah->idents = NULL;
+ ipseclog((LOG_DEBUG, "key_setident: No more memory.\n"));
+ return ENOBUFS;
}
bcopy(idsrc, sah->idents, idsrclen);
bcopy(iddst, sah->identd, iddstlen);
return 0;
}
-static struct sadb_msg *
-key_getmsgbuf_x1(mhp)
- caddr_t *mhp;
+/*
+ * m will not be freed on return.
+ * it is caller's responsibility to free the result.
+ */
+static struct mbuf *
+key_getmsgbuf_x1(m, mhp)
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
- struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ struct mbuf *n;
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_EXT_SA,
+ SADB_X_EXT_SA2, SADB_EXT_ADDRESS_SRC,
+ SADB_EXT_ADDRESS_DST, SADB_EXT_LIFETIME_HARD,
+ SADB_EXT_LIFETIME_SOFT, SADB_EXT_IDENTITY_SRC,
+ SADB_EXT_IDENTITY_DST};
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_getmsgbuf_x1: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_sa)
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_SRC])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_DST])
- + (mhp[SADB_EXT_LIFETIME_HARD] == NULL
- ? 0 : sizeof(struct sadb_lifetime))
- + (mhp[SADB_EXT_LIFETIME_SOFT] == NULL
- ? 0 : sizeof(struct sadb_lifetime))
- + (mhp[SADB_EXT_IDENTITY_SRC] == NULL
- ? 0 : PFKEY_EXTLEN(mhp[SADB_EXT_IDENTITY_SRC]))
- + (mhp[SADB_EXT_IDENTITY_DST] == NULL
- ? 0 : PFKEY_EXTLEN(mhp[SADB_EXT_IDENTITY_DST]));
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL)
+ n = key_gather_mbuf(m, mhp, 1, sizeof(mbufItems)/sizeof(int), mbufItems);
+ if (!n)
return NULL;
- bzero((caddr_t)newmsg, len);
-
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
- newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
- p = key_setsadbext(p, mhp[SADB_EXT_SA]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_SRC]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_DST]);
-
- if (mhp[SADB_EXT_LIFETIME_HARD] != NULL)
- p = key_setsadbext(p, mhp[SADB_EXT_LIFETIME_HARD]);
-
- if (mhp[SADB_EXT_LIFETIME_SOFT] != NULL)
- p = key_setsadbext(p, mhp[SADB_EXT_LIFETIME_SOFT]);
-
- if (mhp[SADB_EXT_IDENTITY_SRC] != NULL)
- p = key_setsadbext(p, mhp[SADB_EXT_IDENTITY_SRC]);
- if (mhp[SADB_EXT_IDENTITY_DST] != NULL)
- p = key_setsadbext(p, mhp[SADB_EXT_IDENTITY_DST]);
+ if (n->m_len < sizeof(struct sadb_msg)) {
+ n = m_pullup(n, sizeof(struct sadb_msg));
+ if (n == NULL)
+ return NULL;
+ }
+ mtod(n, struct sadb_msg *)->sadb_msg_errno = 0;
+ mtod(n, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(n->m_pkthdr.len);
- return newmsg;
+ return n;
}
+static int key_delete_all __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *, u_int16_t));
+
/*
* SADB_DELETE processing
* receive
* <base, SA(*), address(SD)>
* to the ikmpd.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_delete(mhp)
- caddr_t *mhp;
+static int
+key_delete(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_sa *sa0;
struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *sah;
- struct secasvar *sav;
+ struct secasvar *sav = NULL;
u_int16_t proto;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_delete: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_delete: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_delete: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- if (mhp[SADB_EXT_SA] == NULL
- || mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL) {
-#if IPSEC_DEBUG
- printf("key_delete: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL) {
+ ipseclog((LOG_DEBUG, "key_delete: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- sa0 = (struct sadb_sa *)mhp[SADB_EXT_SA];
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ if (mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address)) {
+ ipseclog((LOG_DEBUG, "key_delete: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
- /* get a SA header */
- if ((sah = key_getsah(&saidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_delete: no SA found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ if (mhp->ext[SADB_EXT_SA] == NULL) {
+ /*
+ * Caller wants us to delete all non-LARVAL SAs
+ * that match the src/dst. This is used during
+ * IKE INITIAL-CONTACT.
+ */
+ ipseclog((LOG_DEBUG, "key_delete: doing delete all.\n"));
+ return key_delete_all(so, m, mhp, proto);
+ } else if (mhp->extlen[SADB_EXT_SA] < sizeof(struct sadb_sa)) {
+ ipseclog((LOG_DEBUG, "key_delete: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- /* get a SA with SPI. */
- sav = key_getsavbyspi(sah, sa0->sadb_sa_spi);
- if (sav == NULL) {
-#if IPSEC_DEBUG
- printf("key_delete: no alive SA found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ sa0 = (struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ src0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_SRC]);
+ dst0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_DST]);
+
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, IPSEC_MODE_ANY, 0, src0 + 1, dst0 + 1, &saidx);
+
+ /* get a SA header */
+ LIST_FOREACH(sah, &sahtree, chain) {
+ if (sah->state == SADB_SASTATE_DEAD)
+ continue;
+ if (key_cmpsaidx(&sah->saidx, &saidx, CMP_HEAD) == 0)
+ continue;
+
+ /* get a SA with SPI. */
+ sav = key_getsavbyspi(sah, sa0->sadb_sa_spi);
+ if (sav)
+ break;
+ }
+ if (sah == NULL) {
+ ipseclog((LOG_DEBUG, "key_delete: no SA found.\n"));
+ return key_senderror(so, m, ENOENT);
}
key_sa_chgstate(sav, SADB_SASTATE_DEAD);
sav = NULL;
{
+ struct mbuf *n;
struct sadb_msg *newmsg;
- u_int len;
- caddr_t p;
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_EXT_SA,
+ SADB_EXT_ADDRESS_SRC, SADB_EXT_ADDRESS_DST};
/* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_sa)
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_SRC])
- + PFKEY_EXTLEN(mhp[SADB_EXT_ADDRESS_DST]);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_delete: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
- }
- bzero((caddr_t)newmsg, len);
+ n = key_gather_mbuf(m, mhp, 1, sizeof(mbufItems)/sizeof(int), mbufItems);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
+ if (n->m_len < sizeof(struct sadb_msg)) {
+ n = m_pullup(n, sizeof(struct sadb_msg));
+ if (n == NULL)
+ return key_senderror(so, m, ENOBUFS);
+ }
+ newmsg = mtod(n, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
- p = key_setsadbext(p, mhp[SADB_EXT_SA]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_SRC]);
- p = key_setsadbext(p, mhp[SADB_EXT_ADDRESS_DST]);
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
+ }
+}
- return newmsg;
+/*
+ * delete all SAs for src/dst. Called from key_delete().
+ */
+static int
+key_delete_all(so, m, mhp, proto)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
+ u_int16_t proto;
+{
+ struct sadb_address *src0, *dst0;
+ struct secasindex saidx;
+ struct secashead *sah;
+ struct secasvar *sav, *nextsav;
+ u_int stateidx, state;
+
+ src0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_SRC]);
+ dst0 = (struct sadb_address *)(mhp->ext[SADB_EXT_ADDRESS_DST]);
+
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, IPSEC_MODE_ANY, 0, src0 + 1, dst0 + 1, &saidx);
+
+ LIST_FOREACH(sah, &sahtree, chain) {
+ if (sah->state == SADB_SASTATE_DEAD)
+ continue;
+ if (key_cmpsaidx(&sah->saidx, &saidx, CMP_HEAD) == 0)
+ continue;
+
+ /* Delete all non-LARVAL SAs. */
+ for (stateidx = 0;
+ stateidx < _ARRAYLEN(saorder_state_alive);
+ stateidx++) {
+ state = saorder_state_alive[stateidx];
+ if (state == SADB_SASTATE_LARVAL)
+ continue;
+ for (sav = LIST_FIRST(&sah->savtree[state]);
+ sav != NULL; sav = nextsav) {
+ nextsav = LIST_NEXT(sav, chain);
+ /* sanity check */
+ if (sav->state != state) {
+ ipseclog((LOG_DEBUG, "key_delete_all: "
+ "invalid sav->state "
+ "(queue: %d SA: %d)\n",
+ state, sav->state));
+ continue;
+ }
+
+ key_sa_chgstate(sav, SADB_SASTATE_DEAD);
+ key_freesav(sav);
+ }
+ }
+ }
+ {
+ struct mbuf *n;
+ struct sadb_msg *newmsg;
+ int mbufItems[] = {SADB_EXT_RESERVED, SADB_EXT_ADDRESS_SRC,
+ SADB_EXT_ADDRESS_DST};
+
+ /* create new sadb_msg to reply. */
+ n = key_gather_mbuf(m, mhp, 1, sizeof(mbufItems)/sizeof(int), mbufItems);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
+
+ if (n->m_len < sizeof(struct sadb_msg)) {
+ n = m_pullup(n, sizeof(struct sadb_msg));
+ if (n == NULL)
+ return key_senderror(so, m, ENOBUFS);
+ }
+ newmsg = mtod(n, struct sadb_msg *);
+ newmsg->sadb_msg_errno = 0;
+ newmsg->sadb_msg_len = PFKEY_UNIT64(n->m_pkthdr.len);
+
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ALL);
}
}
* (identity(SD),) (sensitivity)>
* to the ikmpd.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_get(mhp)
- caddr_t *mhp;
+static int
+key_get(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct sadb_sa *sa0;
struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *sah;
- struct secasvar *sav;
+ struct secasvar *sav = NULL;
u_int16_t proto;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_get: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_get: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_get: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- if (mhp[SADB_EXT_SA] == NULL
- || mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL) {
-#if IPSEC_DEBUG
- printf("key_get: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if (mhp->ext[SADB_EXT_SA] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL) {
+ ipseclog((LOG_DEBUG, "key_get: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_SA] < sizeof(struct sadb_sa) ||
+ mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address)) {
+ ipseclog((LOG_DEBUG, "key_get: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- sa0 = (struct sadb_sa *)mhp[SADB_EXT_SA];
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ sa0 = (struct sadb_sa *)mhp->ext[SADB_EXT_SA];
+ src0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_SRC];
+ dst0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_DST];
+
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, IPSEC_MODE_ANY, 0, src0 + 1, dst0 + 1, &saidx);
/* get a SA header */
- if ((sah = key_getsah(&saidx)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_get: no SA found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
- }
+ LIST_FOREACH(sah, &sahtree, chain) {
+ if (sah->state == SADB_SASTATE_DEAD)
+ continue;
+ if (key_cmpsaidx(&sah->saidx, &saidx, CMP_HEAD) == 0)
+ continue;
- /* get a SA with SPI. */
- sav = key_getsavbyspi(sah, sa0->sadb_sa_spi);
- if (sav == NULL) {
-#if IPSEC_DEBUG
- printf("key_get: no SA with state of mature found.\n");
-#endif
- msg0->sadb_msg_errno = ENOENT;
- return NULL;
+ /* get a SA with SPI. */
+ sav = key_getsavbyspi(sah, sa0->sadb_sa_spi);
+ if (sav)
+ break;
+ }
+ if (sah == NULL) {
+ ipseclog((LOG_DEBUG, "key_get: no SA found.\n"));
+ return key_senderror(so, m, ENOENT);
}
{
- struct sadb_msg *newmsg;
- u_int len;
+ struct mbuf *n;
u_int8_t satype;
/* map proto to satype */
if ((satype = key_proto2satype(sah->saidx.proto)) == 0) {
-#if IPSEC_DEBUG
- printf("key_get: there was invalid proto in SAD.\n");
+ ipseclog((LOG_DEBUG, "key_get: there was invalid proto in SAD.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+
+ /* create new sadb_msg to reply. */
+ n = key_setdumpsa(sav, SADB_GET, satype, mhp->msg->sadb_msg_seq,
+ mhp->msg->sadb_msg_pid);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
+
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_ONE);
+ }
+}
+
+/* XXX make it sysctl-configurable? */
+static void
+key_getcomb_setlifetime(comb)
+ struct sadb_comb *comb;
+{
+
+ comb->sadb_comb_soft_allocations = 1;
+ comb->sadb_comb_hard_allocations = 1;
+ comb->sadb_comb_soft_bytes = 0;
+ comb->sadb_comb_hard_bytes = 0;
+ comb->sadb_comb_hard_addtime = 86400; /* 1 day */
+ comb->sadb_comb_soft_addtime = comb->sadb_comb_soft_addtime * 80 / 100;
+ comb->sadb_comb_soft_usetime = 28800; /* 8 hours */
+ comb->sadb_comb_hard_usetime = comb->sadb_comb_hard_usetime * 80 / 100;
+}
+
+#if IPSEC_ESP
+/*
+ * XXX reorder combinations by preference
+ * XXX no idea if the user wants ESP authentication or not
+ */
+static struct mbuf *
+key_getcomb_esp()
+{
+ struct sadb_comb *comb;
+ const struct esp_algorithm *algo;
+ struct mbuf *result = NULL, *m, *n;
+ int encmin;
+ int i, off, o;
+ int totlen;
+ const int l = PFKEY_ALIGN8(sizeof(struct sadb_comb));
+
+ m = NULL;
+ for (i = 1; i <= SADB_EALG_MAX; i++) {
+ algo = esp_algorithm_lookup(i);
+ if (!algo)
+ continue;
+
+ if (algo->keymax < ipsec_esp_keymin)
+ continue;
+ if (algo->keymin < ipsec_esp_keymin)
+ encmin = ipsec_esp_keymin;
+ else
+ encmin = algo->keymin;
+
+ if (ipsec_esp_auth)
+ m = key_getcomb_ah();
+ else {
+#if DIAGNOSTIC
+ if (l > MLEN)
+ panic("assumption failed in key_getcomb_esp");
+#endif
+ MGET(m, M_DONTWAIT, MT_DATA);
+ if (m) {
+ M_ALIGN(m, l);
+ m->m_len = l;
+ m->m_next = NULL;
+ bzero(mtod(m, caddr_t), m->m_len);
+ }
+ }
+ if (!m)
+ goto fail;
+
+ totlen = 0;
+ for (n = m; n; n = n->m_next)
+ totlen += n->m_len;
+#if DIAGNOSTIC
+ if (totlen % l)
+ panic("assumption failed in key_getcomb_esp");
+#endif
+
+ for (off = 0; off < totlen; off += l) {
+ n = m_pulldown(m, off, l, &o);
+ if (!n) {
+ /* m is already freed */
+ goto fail;
+ }
+ comb = (struct sadb_comb *)(mtod(n, caddr_t) + o);
+ bzero(comb, sizeof(*comb));
+ key_getcomb_setlifetime(comb);
+ comb->sadb_comb_encrypt = i;
+ comb->sadb_comb_encrypt_minbits = encmin;
+ comb->sadb_comb_encrypt_maxbits = algo->keymax;
+ }
+
+ if (!result)
+ result = m;
+ else
+ m_cat(result, m);
+ }
+
+ return result;
+
+ fail:
+ if (result)
+ m_freem(result);
+ return NULL;
+}
#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+
+/*
+ * XXX reorder combinations by preference
+ */
+static struct mbuf *
+key_getcomb_ah()
+{
+ struct sadb_comb *comb;
+ const struct ah_algorithm *algo;
+ struct mbuf *m;
+ int min;
+ int i;
+ const int l = PFKEY_ALIGN8(sizeof(struct sadb_comb));
+
+ m = NULL;
+ for (i = 1; i <= SADB_AALG_MAX; i++) {
+#if 1
+ /* we prefer HMAC algorithms, not old algorithms */
+ if (i != SADB_AALG_SHA1HMAC && i != SADB_AALG_MD5HMAC)
+ continue;
+#endif
+ algo = ah_algorithm_lookup(i);
+ if (!algo)
+ continue;
+
+ if (algo->keymax < ipsec_ah_keymin)
+ continue;
+ if (algo->keymin < ipsec_ah_keymin)
+ min = ipsec_ah_keymin;
+ else
+ min = algo->keymin;
+
+ if (!m) {
+#if DIAGNOSTIC
+ if (l > MLEN)
+ panic("assumption failed in key_getcomb_ah");
+#endif
+ MGET(m, M_DONTWAIT, MT_DATA);
+ if (m) {
+ M_ALIGN(m, l);
+ m->m_len = l;
+ m->m_next = NULL;
+ }
+ } else
+ M_PREPEND(m, l, M_DONTWAIT);
+ if (!m)
+ return NULL;
+
+ comb = mtod(m, struct sadb_comb *);
+ bzero(comb, sizeof(*comb));
+ key_getcomb_setlifetime(comb);
+ comb->sadb_comb_auth = i;
+ comb->sadb_comb_auth_minbits = min;
+ comb->sadb_comb_auth_maxbits = algo->keymax;
}
- /* calculate a length of message buffer */
- len = key_getmsglen(sav);
+ return m;
+}
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_get: No more memory.\n");
+/*
+ * not really an official behavior. discussed in pf_key@inner.net in Sep2000.
+ * XXX reorder combinations by preference
+ */
+static struct mbuf *
+key_getcomb_ipcomp()
+{
+ struct sadb_comb *comb;
+ const struct ipcomp_algorithm *algo;
+ struct mbuf *m;
+ int i;
+ const int l = PFKEY_ALIGN8(sizeof(struct sadb_comb));
+
+ m = NULL;
+ for (i = 1; i <= SADB_X_CALG_MAX; i++) {
+ algo = ipcomp_algorithm_lookup(i);
+ if (!algo)
+ continue;
+
+ if (!m) {
+#if DIAGNOSTIC
+ if (l > MLEN)
+ panic("assumption failed in key_getcomb_ipcomp");
+#endif
+ MGET(m, M_DONTWAIT, MT_DATA);
+ if (m) {
+ M_ALIGN(m, l);
+ m->m_len = l;
+ m->m_next = NULL;
+ }
+ } else
+ M_PREPEND(m, l, M_DONTWAIT);
+ if (!m)
+ return NULL;
+
+ comb = mtod(m, struct sadb_comb *);
+ bzero(comb, sizeof(*comb));
+ key_getcomb_setlifetime(comb);
+ comb->sadb_comb_encrypt = i;
+ /* what should we set into sadb_comb_*_{min,max}bits? */
+ }
+
+ return m;
+}
+
+/*
+ * XXX no way to pass mode (transport/tunnel) to userland
+ * XXX replay checking?
+ * XXX sysctl interface to ipsec_{ah,esp}_keymin
+ */
+static struct mbuf *
+key_getprop(saidx)
+ const struct secasindex *saidx;
+{
+ struct sadb_prop *prop;
+ struct mbuf *m, *n;
+ const int l = PFKEY_ALIGN8(sizeof(struct sadb_prop));
+ int totlen;
+
+ switch (saidx->proto) {
+#if IPSEC_ESP
+ case IPPROTO_ESP:
+ m = key_getcomb_esp();
+ break;
#endif
- msg0->sadb_msg_errno = ENOBUFS;
+ case IPPROTO_AH:
+ m = key_getcomb_ah();
+ break;
+ case IPPROTO_IPCOMP:
+ m = key_getcomb_ipcomp();
+ break;
+ default:
return NULL;
}
- /* create new sadb_msg to reply. */
- (void)key_setdumpsa(newmsg, sav, SADB_GET,
- satype, msg0->sadb_msg_seq, msg0->sadb_msg_pid);
+ if (!m)
+ return NULL;
+ M_PREPEND(m, l, M_DONTWAIT);
+ if (!m)
+ return NULL;
+
+ totlen = 0;
+ for (n = m; n; n = n->m_next)
+ totlen += n->m_len;
+
+ prop = mtod(m, struct sadb_prop *);
+ bzero(prop, sizeof(*prop));
+ prop->sadb_prop_len = PFKEY_UNIT64(totlen);
+ prop->sadb_prop_exttype = SADB_EXT_PROPOSAL;
+ prop->sadb_prop_replay = 32; /* XXX */
- return newmsg;
- }
+ return m;
}
/*
* SADB_ACQUIRE processing called by key_checkrequest() and key_acquire2().
* send
- * <base, SA, address(SD), (address(P)),
+ * <base, SA, address(SD), (address(P)), x_policy,
* (identity(SD),) (sensitivity,) proposal>
* to KMD, and expect to receive
* <base> with SADB_ACQUIRE if error occured,
* <base, src address, dst address, (SPI range)> with SADB_GETSPI
* from KMD by PF_KEY.
*
- * sensitivity is not supported.
+ * XXX x_policy is outside of RFC2367 (KAME extension).
+ * XXX sensitivity is not supported.
+ * XXX for ipcomp, RFC2367 does not define how to fill in proposal.
+ * see comment for key_getcomb_ipcomp().
*
* OUT:
* 0 : succeed
struct secasindex *saidx;
struct secpolicy *sp;
{
+ struct mbuf *result = NULL, *m;
#ifndef IPSEC_NONBLOCK_ACQUIRE
struct secacq *newacq;
#endif
- struct secpolicyindex *spidx = NULL;
u_int8_t satype;
- int error;
+ int error = -1;
+ u_int32_t seq;
/* sanity check */
- if (saidx == NULL || sp == NULL)
+ if (saidx == NULL)
panic("key_acquire: NULL pointer is passed.\n");
if ((satype = key_proto2satype(saidx->proto)) == 0)
panic("key_acquire: invalid proto is passed.\n");
- spidx = &sp->spidx;
-
#ifndef IPSEC_NONBLOCK_ACQUIRE
/*
* We never do anything about acquirng SA. There is anather
}
#endif
- {
- struct sadb_msg *newmsg = NULL;
- union sadb_x_ident_id id;
- u_int len;
- caddr_t p;
-
- /* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(saidx->src.ss_len)
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(saidx->dst.ss_len)
- + sizeof(struct sadb_x_policy)
- + sizeof(struct sadb_ident)
- + PFKEY_ALIGN8(spidx->src.ss_len)
- + sizeof(struct sadb_ident)
- + PFKEY_ALIGN8(spidx->dst.ss_len)
- + sizeof(struct sadb_prop)
- + sizeof(struct sadb_comb); /* XXX to be multiple */
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == 0) {
-#if IPSEC_DEBUG
- printf("key_acquire: No more memory.\n");
-#endif
- return ENOBUFS;
- }
- bzero((caddr_t)newmsg, len);
-
- newmsg->sadb_msg_version = PF_KEY_V2;
- newmsg->sadb_msg_type = SADB_ACQUIRE;
- newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_satype = satype;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- newmsg->sadb_msg_mode = saidx->mode;
- newmsg->sadb_msg_reqid = saidx->reqid;
#ifndef IPSEC_NONBLOCK_ACQUIRE
- newmsg->sadb_msg_seq = newacq->seq;
+ seq = newacq->seq;
#else
- newmsg->sadb_msg_seq = (acq_seq = (acq_seq == ~0 ? 1 : ++acq_seq));
+ seq = (acq_seq = (acq_seq == ~0 ? 1 : ++acq_seq));
#endif
-
- newmsg->sadb_msg_pid = 0;
-
- p = (caddr_t)newmsg + sizeof(struct sadb_msg);
+ m = key_setsadbmsg(SADB_ACQUIRE, 0, satype, seq, 0, 0);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ result = m;
/* set sadb_address for saidx's. */
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_SRC,
- (struct sockaddr *)&saidx->src,
- _INALENBYAF(saidx->src.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_DST,
- (struct sockaddr *)&saidx->dst,
- _INALENBYAF(saidx->dst.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&saidx->src, FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
- /* set sadb_x_policy */
- p = key_setsadbxpolicy(p, sp->policy, sp->spidx.dir, sp->id);
-
- /* set sadb_address for spidx's. */
- bzero(&id, sizeof(id));
- id.sadb_x_ident_id_addr.prefix = spidx->prefs;
- id.sadb_x_ident_id_addr.ul_proto = spidx->ul_proto;
- p = key_setsadbident(p,
- SADB_EXT_IDENTITY_SRC,
- SADB_X_IDENTTYPE_ADDR,
- (caddr_t)&spidx->src,
- spidx->src.ss_len,
- *(u_int64_t *)&id);
-
- bzero(&id, sizeof(id));
- id.sadb_x_ident_id_addr.prefix = spidx->prefd;
- id.sadb_x_ident_id_addr.ul_proto = spidx->ul_proto;
- p = key_setsadbident(p,
- SADB_EXT_IDENTITY_DST,
- SADB_X_IDENTTYPE_ADDR,
- (caddr_t)&spidx->dst,
- spidx->dst.ss_len,
- *(u_int64_t *)&id);
-
- /* create proposal extension */
- /* set combination extension */
- /* XXX: to be defined by proposal database */
- {
- struct sadb_prop *prop;
- struct sadb_comb *comb;
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&saidx->dst, FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
- prop = (struct sadb_prop *)p;
- prop->sadb_prop_len = PFKEY_UNIT64(sizeof(*prop) + sizeof(*comb));
- /* XXX to be multiple */
- prop->sadb_prop_exttype = SADB_EXT_PROPOSAL;
- prop->sadb_prop_replay = 32; /* XXX be variable ? */
- p += sizeof(struct sadb_prop);
-
- comb = (struct sadb_comb *)p;
- comb->sadb_comb_auth = SADB_AALG_SHA1HMAC; /* XXX ??? */
- comb->sadb_comb_encrypt = SADB_EALG_DESCBC; /* XXX ??? */
- comb->sadb_comb_flags = 0;
- comb->sadb_comb_auth_minbits = 8; /* XXX */
- comb->sadb_comb_auth_maxbits = 1024; /* XXX */
- comb->sadb_comb_encrypt_minbits = 64; /* XXX */
- comb->sadb_comb_encrypt_maxbits = 64; /* XXX */
- comb->sadb_comb_soft_allocations = 0;
- comb->sadb_comb_hard_allocations = 0;
- comb->sadb_comb_soft_bytes = 0;
- comb->sadb_comb_hard_bytes = 0;
- comb->sadb_comb_soft_addtime = 0;
- comb->sadb_comb_hard_addtime = 0;
- comb->sadb_comb_soft_usetime = 0;
- comb->sadb_comb_hard_usetime = 0;
+ /* XXX proxy address (optional) */
- p += sizeof(*comb);
- }
+ /* set sadb_x_policy */
+ if (sp) {
+ m = key_setsadbxpolicy(sp->policy, sp->spidx.dir, sp->id);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+ }
-#if 0 /* XXX Do it ?*/
+ /* XXX identity (optional) */
+#if 0
if (idexttype && fqdn) {
/* create identity extension (FQDN) */
struct sadb_ident *id;
}
#endif
- error = key_sendall(newmsg, len);
-#if IPSEC_DEBUG
- if (error != 0)
- printf("key_acquire: key_sendall returned %d\n", error);
+ /* XXX sensitivity (optional) */
+
+ /* create proposal/combination extension */
+ m = key_getprop(saidx);
+#if 0
+ /*
+ * spec conformant: always attach proposal/combination extension,
+ * the problem is that we have no way to attach it for ipcomp,
+ * due to the way sadb_comb is declared in RFC2367.
+ */
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+#else
+ /*
+ * outside of spec; make proposal/combination extension optional.
+ */
+ if (m)
+ m_cat(result, m);
#endif
- return error;
- }
- return 0;
+ if ((result->m_flags & M_PKTHDR) == 0) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result, sizeof(struct sadb_msg));
+ if (result == NULL) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ }
+
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
+
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ return key_sendup_mbuf(NULL, result, KEY_SENDUP_REGISTERED);
+
+ fail:
+ if (result)
+ m_freem(result);
+ return error;
}
#ifndef IPSEC_NONBLOCK_ACQUIRE
struct secasindex *saidx;
{
struct secacq *newacq;
+ struct timeval tv;
/* get new entry */
KMALLOC(newacq, struct secacq *, sizeof(struct secacq));
if (newacq == NULL) {
-#if IPSEC_DEBUG
- printf("key_newacq: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_newacq: No more memory.\n"));
return NULL;
}
bzero(newacq, sizeof(*newacq));
/* copy secindex */
bcopy(saidx, &newacq->saidx, sizeof(newacq->saidx));
newacq->seq = (acq_seq == ~0 ? 1 : ++acq_seq);
- newacq->tick = 0;
+ microtime(&tv);
+ newacq->created = tv.tv_sec;
newacq->count = 0;
return newacq;
struct secacq *acq;
LIST_FOREACH(acq, &acqtree, chain) {
- if (key_cmpsaidx_exactly(saidx, &acq->saidx))
+ if (key_cmpsaidx(saidx, &acq->saidx, CMP_EXACTLY))
return acq;
}
struct secpolicyindex *spidx;
{
struct secspacq *acq;
+ struct timeval tv;
/* get new entry */
KMALLOC(acq, struct secspacq *, sizeof(struct secspacq));
if (acq == NULL) {
-#if IPSEC_DEBUG
- printf("key_newspacq: No more memory.\n");
-#endif
+ ipseclog((LOG_DEBUG, "key_newspacq: No more memory.\n"));
return NULL;
}
bzero(acq, sizeof(*acq));
/* copy secindex */
bcopy(spidx, &acq->spidx, sizeof(acq->spidx));
- acq->tick = 0;
+ microtime(&tv);
+ acq->created = tv.tv_sec;
acq->count = 0;
return acq;
* <base, address(SD), (address(P),) (identity(SD),) (sensitivity,) proposal>
* to the socket.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_acquire2(mhp)
- caddr_t *mhp;
+static int
+key_acquire2(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
- struct sadb_address *src0, *dst0;
+ const struct sadb_address *src0, *dst0;
struct secasindex saidx;
struct secashead *sah;
u_int16_t proto;
+ int error;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_acquire2: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/*
* Error message from KMd.
* We assume that if error was occured in IKEd, the length of PFKEY
* message is equal to the size of sadb_msg structure.
- * We return ~0 even if error occured in this function.
+ * We do not raise error even if error occured in this function.
*/
- if (msg0->sadb_msg_len == PFKEY_UNIT64(sizeof(struct sadb_msg))) {
-
+ if (mhp->msg->sadb_msg_len == PFKEY_UNIT64(sizeof(struct sadb_msg))) {
#ifndef IPSEC_NONBLOCK_ACQUIRE
struct secacq *acq;
+ struct timeval tv;
/* check sequence number */
- if (msg0->sadb_msg_seq == 0) {
-#if IPSEC_DEBUG
- printf("key_acquire2: must specify sequence number.\n");
-#endif
- return (struct sadb_msg *)~0;
+ if (mhp->msg->sadb_msg_seq == 0) {
+ ipseclog((LOG_DEBUG, "key_acquire2: must specify sequence number.\n"));
+ m_freem(m);
+ return 0;
}
- if ((acq = key_getacqbyseq(msg0->sadb_msg_seq)) == NULL) {
-#if IPSEC_DEBUG
- printf("key_acquire2: "
- "invalid sequence number is passed.\n");
-#endif
- return (struct sadb_msg *)~0;
+ if ((acq = key_getacqbyseq(mhp->msg->sadb_msg_seq)) == NULL) {
+ /*
+ * the specified larval SA is already gone, or we got
+ * a bogus sequence number. we can silently ignore it.
+ */
+ m_freem(m);
+ return 0;
}
/* reset acq counter in order to deletion by timehander. */
- acq->tick = key_blockacq_lifetime;
+ microtime(&tv);
+ acq->created = tv.tv_sec;
acq->count = 0;
#endif
- return (struct sadb_msg *)~0;
- /* NOTREACHED */
+ m_freem(m);
+ return 0;
}
/*
*/
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_acquire2: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_acquire2: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- if (mhp[SADB_EXT_ADDRESS_SRC] == NULL
- || mhp[SADB_EXT_ADDRESS_DST] == NULL
- || mhp[SADB_EXT_PROPOSAL] == NULL) {
+ if (mhp->ext[SADB_EXT_ADDRESS_SRC] == NULL ||
+ mhp->ext[SADB_EXT_ADDRESS_DST] == NULL ||
+ mhp->ext[SADB_EXT_PROPOSAL] == NULL) {
/* error */
-#if IPSEC_DEBUG
- printf("key_acquire2: invalid message is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_acquire2: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
+ }
+ if (mhp->extlen[SADB_EXT_ADDRESS_SRC] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_ADDRESS_DST] < sizeof(struct sadb_address) ||
+ mhp->extlen[SADB_EXT_PROPOSAL] < sizeof(struct sadb_prop)) {
+ /* error */
+ ipseclog((LOG_DEBUG, "key_acquire2: invalid message is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
- KEY_SETSECASIDX(proto, msg0, src0+1, dst0+1, &saidx);
+ src0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_SRC];
+ dst0 = (struct sadb_address *)mhp->ext[SADB_EXT_ADDRESS_DST];
+
+ /* XXX boundary check against sa_len */
+ KEY_SETSECASIDX(proto, IPSEC_MODE_ANY, 0, src0 + 1, dst0 + 1, &saidx);
/* get a SA index */
- if ((sah = key_getsah(&saidx)) != NULL) {
-#if IPSEC_DEBUG
- printf("key_acquire2: a SA exists already.\n");
-#endif
- msg0->sadb_msg_errno = EEXIST;
- return NULL;
+ LIST_FOREACH(sah, &sahtree, chain) {
+ if (sah->state == SADB_SASTATE_DEAD)
+ continue;
+ if (key_cmpsaidx(&sah->saidx, &saidx, CMP_MODE_REQID))
+ break;
}
-
- msg0->sadb_msg_errno = key_acquire(&saidx, NULL);
- if (msg0->sadb_msg_errno != 0) {
-#if IPSEC_DEBUG
- printf("key_acquire2: error %d returned "
- "from key_acquire.\n", msg0->sadb_msg_errno);
-#endif
- return NULL;
+ if (sah != NULL) {
+ ipseclog((LOG_DEBUG, "key_acquire2: a SA exists already.\n"));
+ return key_senderror(so, m, EEXIST);
}
- {
- struct sadb_msg *newmsg;
- u_int len;
-
- /* create new sadb_msg to reply. */
- len = PFKEY_UNUNIT64(msg0->sadb_msg_len);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_acquire2: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ error = key_acquire(&saidx, NULL);
+ if (error != 0) {
+ ipseclog((LOG_DEBUG, "key_acquire2: error %d returned "
+ "from key_acquire.\n", mhp->msg->sadb_msg_errno));
+ return key_senderror(so, m, error);
}
- bzero((caddr_t)newmsg, len);
- bcopy(mhp[0], (caddr_t)newmsg, len);
-
- return newmsg;
- }
+ return key_sendup_mbuf(so, m, KEY_SENDUP_REGISTERED);
}
/*
* <base, supported>
* to KMD by PF_KEY.
* If socket is detached, must free from regnode.
- * OUT:
- * 0 : succeed
- * others: error number
+ *
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_register(mhp, so)
- caddr_t *mhp;
+static int
+key_register(so, m, mhp)
struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct secreg *reg, *newreg = 0;
/* sanity check */
- if (mhp == NULL || so == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_register: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* check for invalid register message */
- if (msg0->sadb_msg_satype >= sizeof(regtree)/sizeof(regtree[0])) {
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
- }
+ if (mhp->msg->sadb_msg_satype >= sizeof(regtree)/sizeof(regtree[0]))
+ return key_senderror(so, m, EINVAL);
/* When SATYPE_UNSPEC is specified, only return sabd_supported. */
- if (msg0->sadb_msg_satype == SADB_SATYPE_UNSPEC)
+ if (mhp->msg->sadb_msg_satype == SADB_SATYPE_UNSPEC)
goto setmsg;
/* check whether existing or not */
- LIST_FOREACH(reg, ®tree[msg0->sadb_msg_satype], chain) {
+ LIST_FOREACH(reg, ®tree[mhp->msg->sadb_msg_satype], chain) {
if (reg->so == so) {
-#if IPSEC_DEBUG
- printf("key_register: socket exists already.\n");
-#endif
- msg0->sadb_msg_errno = EEXIST;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_register: socket exists already.\n"));
+ return key_senderror(so, m, EEXIST);
}
}
/* create regnode */
- KMALLOC(newreg, struct secreg *, sizeof(struct secreg));
+ KMALLOC(newreg, struct secreg *, sizeof(*newreg));
if (newreg == NULL) {
-#if IPSEC_DEBUG
- printf("key_register: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_register: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
- bzero((caddr_t)newreg, sizeof(struct secreg));
+ bzero((caddr_t)newreg, sizeof(*newreg));
newreg->so = so;
((struct keycb *)sotorawcb(so))->kp_registered++;
/* add regnode to regtree. */
- LIST_INSERT_HEAD(®tree[msg0->sadb_msg_satype], newreg, chain);
+ LIST_INSERT_HEAD(®tree[mhp->msg->sadb_msg_satype], newreg, chain);
setmsg:
- {
+ {
+ struct mbuf *n;
struct sadb_msg *newmsg;
struct sadb_supported *sup;
u_int len, alen, elen;
- caddr_t p;
+ int off;
+ int i;
+ struct sadb_alg *alg;
/* create new sadb_msg to reply. */
- alen = sizeof(struct sadb_supported)
- + ((SADB_AALG_MAX - 1) * sizeof(struct sadb_alg));
-
-#if IPSEC_ESP
- elen = sizeof(struct sadb_supported)
- + ((SADB_EALG_MAX - 1) * sizeof(struct sadb_alg));
-#else
+ alen = 0;
+ for (i = 1; i <= SADB_AALG_MAX; i++) {
+ if (ah_algorithm_lookup(i))
+ alen += sizeof(struct sadb_alg);
+ }
+ if (alen)
+ alen += sizeof(struct sadb_supported);
elen = 0;
+#if IPSEC_ESP
+ for (i = 1; i <= SADB_EALG_MAX; i++) {
+ if (esp_algorithm_lookup(i))
+ elen += sizeof(struct sadb_alg);
+ }
+ if (elen)
+ elen += sizeof(struct sadb_supported);
#endif
- len = sizeof(struct sadb_msg)
- + alen
- + elen;
+ len = sizeof(struct sadb_msg) + alen + elen;
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_register: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ if (len > MCLBYTES)
+ return key_senderror(so, m, ENOBUFS);
+
+ MGETHDR(n, M_DONTWAIT, MT_DATA);
+ if (len > MHLEN) {
+ MCLGET(n, M_DONTWAIT);
+ if ((n->m_flags & M_EXT) == 0) {
+ m_freem(n);
+ n = NULL;
+ }
}
- bzero((caddr_t)newmsg, len);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
+
+ n->m_pkthdr.len = n->m_len = len;
+ n->m_next = NULL;
+ off = 0;
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
+ m_copydata(m, 0, sizeof(struct sadb_msg), mtod(n, caddr_t) + off);
+ newmsg = mtod(n, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
newmsg->sadb_msg_len = PFKEY_UNIT64(len);
- p = (caddr_t)newmsg + sizeof(*msg0);
+ off += PFKEY_ALIGN8(sizeof(struct sadb_msg));
/* for authentication algorithm */
- sup = (struct sadb_supported *)p;
- sup->sadb_supported_len = PFKEY_UNIT64(alen);
- sup->sadb_supported_exttype = SADB_EXT_SUPPORTED_AUTH;
- p += sizeof(*sup);
+ if (alen) {
+ sup = (struct sadb_supported *)(mtod(n, caddr_t) + off);
+ sup->sadb_supported_len = PFKEY_UNIT64(alen);
+ sup->sadb_supported_exttype = SADB_EXT_SUPPORTED_AUTH;
+ off += PFKEY_ALIGN8(sizeof(*sup));
- {
- int i;
- struct sadb_alg *alg;
- struct ah_algorithm *algo;
+ for (i = 1; i <= SADB_AALG_MAX; i++) {
+ const struct ah_algorithm *aalgo;
- for (i = 1; i < SADB_AALG_MAX; i++) {
- algo = &ah_algorithms[i];
- alg = (struct sadb_alg *)p;
- alg->sadb_alg_id = i;
- alg->sadb_alg_ivlen = 0;
- alg->sadb_alg_minbits = algo->keymin;
- alg->sadb_alg_maxbits = algo->keymax;
- p += sizeof(struct sadb_alg);
+ aalgo = ah_algorithm_lookup(i);
+ if (!aalgo)
+ continue;
+ alg = (struct sadb_alg *)(mtod(n, caddr_t) + off);
+ alg->sadb_alg_id = i;
+ alg->sadb_alg_ivlen = 0;
+ alg->sadb_alg_minbits = aalgo->keymin;
+ alg->sadb_alg_maxbits = aalgo->keymax;
+ off += PFKEY_ALIGN8(sizeof(*alg));
+ }
}
- }
#if IPSEC_ESP
/* for encryption algorithm */
- sup = (struct sadb_supported *)p;
- sup->sadb_supported_len = PFKEY_UNIT64(elen);
- sup->sadb_supported_exttype = SADB_EXT_SUPPORTED_ENCRYPT;
- p += sizeof(*sup);
-
- {
- int i;
- struct sadb_alg *alg;
- struct esp_algorithm *algo;
+ if (elen) {
+ sup = (struct sadb_supported *)(mtod(n, caddr_t) + off);
+ sup->sadb_supported_len = PFKEY_UNIT64(elen);
+ sup->sadb_supported_exttype = SADB_EXT_SUPPORTED_ENCRYPT;
+ off += PFKEY_ALIGN8(sizeof(*sup));
- for (i = 1; i < SADB_EALG_MAX; i++) {
- algo = &esp_algorithms[i];
+ for (i = 1; i <= SADB_EALG_MAX; i++) {
+ const struct esp_algorithm *ealgo;
- alg = (struct sadb_alg *)p;
- alg->sadb_alg_id = i;
- if (algo && algo->ivlen) {
- /*
- * give NULL to get the value preferred by algorithm
- * XXX SADB_X_EXT_DERIV ?
- */
- alg->sadb_alg_ivlen = (*algo->ivlen)(NULL);
- } else
- alg->sadb_alg_ivlen = 0;
- alg->sadb_alg_minbits = algo->keymin;
- alg->sadb_alg_maxbits = algo->keymax;
- p += sizeof(struct sadb_alg);
+ ealgo = esp_algorithm_lookup(i);
+ if (!ealgo)
+ continue;
+ alg = (struct sadb_alg *)(mtod(n, caddr_t) + off);
+ alg->sadb_alg_id = i;
+ if (ealgo && ealgo->ivlen) {
+ /*
+ * give NULL to get the value preferred by
+ * algorithm XXX SADB_X_EXT_DERIV ?
+ */
+ alg->sadb_alg_ivlen =
+ (*ealgo->ivlen)(ealgo, NULL);
+ } else
+ alg->sadb_alg_ivlen = 0;
+ alg->sadb_alg_minbits = ealgo->keymin;
+ alg->sadb_alg_maxbits = ealgo->keymax;
+ off += PFKEY_ALIGN8(sizeof(struct sadb_alg));
+ }
}
- }
#endif
- return newmsg;
- }
+#if DIGAGNOSTIC
+ if (off != len)
+ panic("length assumption failed in key_register");
+#endif
+
+ m_freem(m);
+ return key_sendup_mbuf(so, n, KEY_SENDUP_REGISTERED);
+ }
}
/*
/*
* SADB_EXPIRE processing
* send
- * <base, SA, lifetime(C and one of HS), address(SD)>
+ * <base, SA, SA2, lifetime(C and one of HS), address(SD)>
* to KMD by PF_KEY.
* NOTE: We send only soft lifetime extension.
*
{
int s;
int satype;
+ struct mbuf *result = NULL, *m;
+ int len;
+ int error = -1;
+ struct sadb_lifetime *lt;
/* XXX: Why do we lock ? */
-#ifdef __NetBSD__
- s = splsoftnet(); /*called from softclock()*/
-#else
s = splnet(); /*called from softclock()*/
-#endif
/* sanity check */
if (sav == NULL)
if ((satype = key_proto2satype(sav->sah->saidx.proto)) == 0)
panic("key_expire: invalid proto is passed.\n");
- {
- struct sadb_msg *newmsg = NULL;
- u_int len;
- caddr_t p;
- int error;
-
- /* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg)
- + sizeof(struct sadb_sa)
- + sizeof(struct sadb_lifetime)
- + sizeof(struct sadb_lifetime)
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(sav->sah->saidx.src.ss_len)
- + sizeof(struct sadb_address)
- + PFKEY_ALIGN8(sav->sah->saidx.dst.ss_len);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_expire: No more memory.\n");
-#endif
- splx(s);
- return ENOBUFS;
+ /* set msg header */
+ m = key_setsadbmsg(SADB_EXPIRE, 0, satype, sav->seq, 0, sav->refcnt);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
}
- bzero((caddr_t)newmsg, len);
+ result = m;
- /* set msg header */
- p = key_setsadbmsg((caddr_t)newmsg, SADB_EXPIRE, len,
- satype, sav->seq, 0,
- sav->sah->saidx.mode, sav->sah->saidx.reqid,
- 0, sav->refcnt);
+ /* create SA extension */
+ m = key_setsadbsa(sav);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
/* create SA extension */
- p = key_setsadbsa(p, sav);
+ m = key_setsadbxsa2(sav->sah->saidx.mode,
+ sav->replay ? sav->replay->count : 0,
+ sav->sah->saidx.reqid);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
- /* create lifetime extension */
- {
- struct sadb_lifetime *m_lt = (struct sadb_lifetime *)p;
-
- m_lt->sadb_lifetime_len = PFKEY_UNIT64(sizeof(struct sadb_lifetime));
- m_lt->sadb_lifetime_exttype = SADB_EXT_LIFETIME_CURRENT;
- m_lt->sadb_lifetime_allocations = sav->lft_c->sadb_lifetime_allocations;
- m_lt->sadb_lifetime_bytes = sav->lft_c->sadb_lifetime_bytes;
- m_lt->sadb_lifetime_addtime = sav->lft_c->sadb_lifetime_addtime;
- m_lt->sadb_lifetime_usetime = sav->lft_c->sadb_lifetime_usetime;
- p += sizeof(struct sadb_lifetime);
-
- /* copy SOFT lifetime extension. */
- bcopy(sav->lft_s, p, sizeof(struct sadb_lifetime));
- p += sizeof(struct sadb_lifetime);
- }
+ /* create lifetime extension (current and soft) */
+ len = PFKEY_ALIGN8(sizeof(*lt)) * 2;
+ m = key_alloc_mbuf(len);
+ if (!m || m->m_next) { /*XXX*/
+ if (m)
+ m_freem(m);
+ error = ENOBUFS;
+ goto fail;
+ }
+ bzero(mtod(m, caddr_t), len);
+ lt = mtod(m, struct sadb_lifetime *);
+ lt->sadb_lifetime_len = PFKEY_UNIT64(sizeof(struct sadb_lifetime));
+ lt->sadb_lifetime_exttype = SADB_EXT_LIFETIME_CURRENT;
+ lt->sadb_lifetime_allocations = sav->lft_c->sadb_lifetime_allocations;
+ lt->sadb_lifetime_bytes = sav->lft_c->sadb_lifetime_bytes;
+ lt->sadb_lifetime_addtime = sav->lft_c->sadb_lifetime_addtime;
+ lt->sadb_lifetime_usetime = sav->lft_c->sadb_lifetime_usetime;
+ lt = (struct sadb_lifetime *)(mtod(m, caddr_t) + len / 2);
+ bcopy(sav->lft_s, lt, sizeof(*lt));
+ m_cat(result, m);
/* set sadb_address for source */
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_SRC,
- (struct sockaddr *)&sav->sah->saidx.src,
- _INALENBYAF(sav->sah->saidx.src.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC,
+ (struct sockaddr *)&sav->sah->saidx.src,
+ FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
/* set sadb_address for destination */
- p = key_setsadbaddr(p,
- SADB_EXT_ADDRESS_DST,
- (struct sockaddr *)&sav->sah->saidx.dst,
- _INALENBYAF(sav->sah->saidx.dst.ss_family) << 3,
- IPSEC_ULPROTO_ANY);
+ m = key_setsadbaddr(SADB_EXT_ADDRESS_DST,
+ (struct sockaddr *)&sav->sah->saidx.dst,
+ FULLMASK, IPSEC_ULPROTO_ANY);
+ if (!m) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ m_cat(result, m);
+
+ if ((result->m_flags & M_PKTHDR) == 0) {
+ error = EINVAL;
+ goto fail;
+ }
+
+ if (result->m_len < sizeof(struct sadb_msg)) {
+ result = m_pullup(result, sizeof(struct sadb_msg));
+ if (result == NULL) {
+ error = ENOBUFS;
+ goto fail;
+ }
+ }
+
+ result->m_pkthdr.len = 0;
+ for (m = result; m; m = m->m_next)
+ result->m_pkthdr.len += m->m_len;
+
+ mtod(result, struct sadb_msg *)->sadb_msg_len =
+ PFKEY_UNIT64(result->m_pkthdr.len);
+
+ splx(s);
+ return key_sendup_mbuf(NULL, result, KEY_SENDUP_REGISTERED);
- error = key_sendall(newmsg, len);
+ fail:
+ if (result)
+ m_freem(result);
splx(s);
return error;
- }
}
/*
* to the ikmpd.
* NOTE: to do is only marking SADB_SASTATE_DEAD.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: NULL if fail.
- * other if success, return pointer to the message to send.
+ * m will always be freed.
*/
-static struct sadb_msg *
-key_flush(mhp)
- caddr_t *mhp;
+static int
+key_flush(so, m, mhp)
+ struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
+ struct sadb_msg *newmsg;
struct secashead *sah, *nextsah;
struct secasvar *sav, *nextsav;
u_int16_t proto;
u_int stateidx;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_flush: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_flush: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_flush: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
/* no SATYPE specified, i.e. flushing all SA. */
for (sah = LIST_FIRST(&sahtree);
sah != NULL;
sah = nextsah) {
-
nextsah = LIST_NEXT(sah, chain);
- if (msg0->sadb_msg_satype != SADB_SATYPE_UNSPEC
+ if (mhp->msg->sadb_msg_satype != SADB_SATYPE_UNSPEC
&& proto != sah->saidx.proto)
continue;
for (stateidx = 0;
stateidx < _ARRAYLEN(saorder_state_alive);
stateidx++) {
-
state = saorder_state_any[stateidx];
for (sav = LIST_FIRST(&sah->savtree[state]);
sav != NULL;
sah->state = SADB_SASTATE_DEAD;
}
- {
- struct sadb_msg *newmsg;
- u_int len;
-
- /* create new sadb_msg to reply. */
- len = sizeof(struct sadb_msg);
-
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_flush: No more memory.\n");
-#endif
- msg0->sadb_msg_errno = ENOBUFS;
- return NULL;
+ if (m->m_len < sizeof(struct sadb_msg) ||
+ sizeof(struct sadb_msg) > m->m_len + M_TRAILINGSPACE(m)) {
+ ipseclog((LOG_DEBUG, "key_flush: No more memory.\n"));
+ return key_senderror(so, m, ENOBUFS);
}
- bzero((caddr_t)newmsg, len);
- bcopy((caddr_t)mhp[0], (caddr_t)newmsg, sizeof(*msg0));
+ if (m->m_next)
+ m_freem(m->m_next);
+ m->m_next = NULL;
+ m->m_pkthdr.len = m->m_len = sizeof(struct sadb_msg);
+ newmsg = mtod(m, struct sadb_msg *);
newmsg->sadb_msg_errno = 0;
- newmsg->sadb_msg_len = PFKEY_UNIT64(len);
+ newmsg->sadb_msg_len = PFKEY_UNIT64(m->m_pkthdr.len);
- return newmsg;
- }
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ALL);
}
/*
* <base> .....
* to the ikmpd.
*
- * IN: mhp: pointer to the pointer to each header.
- * OUT: error code. 0 on success.
+ * m will always be freed.
*/
static int
-key_dump(mhp, so, target)
- caddr_t *mhp;
+key_dump(so, m, mhp)
struct socket *so;
- int target;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
struct secashead *sah;
struct secasvar *sav;
u_int16_t proto;
u_int stateidx;
u_int8_t satype;
u_int8_t state;
- int len, cnt;
+ int cnt;
struct sadb_msg *newmsg;
+ struct mbuf *n;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_dump: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
-
/* map satype to proto */
- if ((proto = key_satype2proto(msg0->sadb_msg_satype)) == 0) {
-#if IPSEC_DEBUG
- printf("key_dump: invalid satype is passed.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ if ((proto = key_satype2proto(mhp->msg->sadb_msg_satype)) == 0) {
+ ipseclog((LOG_DEBUG, "key_dump: invalid satype is passed.\n"));
+ return key_senderror(so, m, EINVAL);
}
/* count sav entries to be sent to the userland. */
cnt = 0;
LIST_FOREACH(sah, &sahtree, chain) {
-
- if (msg0->sadb_msg_satype != SADB_SATYPE_UNSPEC
+ if (mhp->msg->sadb_msg_satype != SADB_SATYPE_UNSPEC
&& proto != sah->saidx.proto)
continue;
for (stateidx = 0;
stateidx < _ARRAYLEN(saorder_state_any);
stateidx++) {
-
state = saorder_state_any[stateidx];
LIST_FOREACH(sav, &sah->savtree[state], chain) {
cnt++;
}
if (cnt == 0)
- return ENOENT;
+ return key_senderror(so, m, ENOENT);
/* send this to the userland, one at a time. */
newmsg = NULL;
LIST_FOREACH(sah, &sahtree, chain) {
-
- if (msg0->sadb_msg_satype != SADB_SATYPE_UNSPEC
+ if (mhp->msg->sadb_msg_satype != SADB_SATYPE_UNSPEC
&& proto != sah->saidx.proto)
continue;
/* map proto to satype */
if ((satype = key_proto2satype(sah->saidx.proto)) == 0) {
-#if IPSEC_DEBUG
- printf("key_dump: there was invalid proto in SAD.\n");
-#endif
- msg0->sadb_msg_errno = EINVAL;
- return NULL;
+ ipseclog((LOG_DEBUG, "key_dump: there was invalid proto in SAD.\n"));
+ return key_senderror(so, m, EINVAL);
}
for (stateidx = 0;
stateidx < _ARRAYLEN(saorder_state_any);
stateidx++) {
-
state = saorder_state_any[stateidx];
LIST_FOREACH(sav, &sah->savtree[state], chain) {
+ n = key_setdumpsa(sav, SADB_DUMP, satype,
+ --cnt, mhp->msg->sadb_msg_pid);
+ if (!n)
+ return key_senderror(so, m, ENOBUFS);
- len = key_getmsglen(sav);
- KMALLOC(newmsg, struct sadb_msg *, len);
- if (newmsg == NULL) {
-#if IPSEC_DEBUG
- printf("key_dump: No more memory.\n");
-#endif
- return ENOBUFS;
- }
- bzero((caddr_t)newmsg, len);
-
- --cnt;
- (void)key_setdumpsa(newmsg, sav, SADB_DUMP,
- satype, cnt, msg0->sadb_msg_pid);
-
- key_sendup(so, newmsg, len, target);
- KFREE(newmsg);
- newmsg = NULL;
+ key_sendup_mbuf(so, n, KEY_SENDUP_ONE);
}
}
}
+ m_freem(m);
return 0;
}
/*
* SADB_X_PROMISC processing
+ *
+ * m will always be freed.
*/
-static void
-key_promisc(mhp, so)
- caddr_t *mhp;
+static int
+key_promisc(so, m, mhp)
struct socket *so;
+ struct mbuf *m;
+ const struct sadb_msghdr *mhp;
{
- struct sadb_msg *msg0;
int olen;
/* sanity check */
- if (mhp == NULL || mhp[0] == NULL)
+ if (so == NULL || m == NULL || mhp == NULL || mhp->msg == NULL)
panic("key_promisc: NULL pointer is passed.\n");
- msg0 = (struct sadb_msg *)mhp[0];
- olen = PFKEY_UNUNIT64(msg0->sadb_msg_len);
+ olen = PFKEY_UNUNIT64(mhp->msg->sadb_msg_len);
if (olen < sizeof(struct sadb_msg)) {
- return;
+#if 1
+ return key_senderror(so, m, EINVAL);
+#else
+ m_freem(m);
+ return 0;
+#endif
} else if (olen == sizeof(struct sadb_msg)) {
/* enable/disable promisc mode */
struct keycb *kp;
- int target = 0;
-
- target = KEY_SENDUP_ONE;
- if (so == NULL) {
- return;
- }
- if ((kp = (struct keycb *)sotorawcb(so)) == NULL) {
- msg0->sadb_msg_errno = EINVAL;
- goto sendorig;
- }
- msg0->sadb_msg_errno = 0;
- if (msg0->sadb_msg_satype == 1 || msg0->sadb_msg_satype == 0) {
- kp->kp_promisc = msg0->sadb_msg_satype;
- } else {
- msg0->sadb_msg_errno = EINVAL;
- goto sendorig;
+ if ((kp = (struct keycb *)sotorawcb(so)) == NULL)
+ return key_senderror(so, m, EINVAL);
+ mhp->msg->sadb_msg_errno = 0;
+ switch (mhp->msg->sadb_msg_satype) {
+ case 0:
+ case 1:
+ kp->kp_promisc = mhp->msg->sadb_msg_satype;
+ break;
+ default:
+ return key_senderror(so, m, EINVAL);
}
/* send the original message back to everyone */
- msg0->sadb_msg_errno = 0;
- target = KEY_SENDUP_ALL;
-sendorig:
- key_sendup(so, msg0, PFKEY_UNUNIT64(msg0->sadb_msg_len), target);
+ mhp->msg->sadb_msg_errno = 0;
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ALL);
} else {
/* send packet as is */
- struct sadb_msg *msg;
- int len;
- len = olen - sizeof(struct sadb_msg);
- KMALLOC(msg, struct sadb_msg *, len);
- if (msg == NULL) {
- msg0->sadb_msg_errno = ENOBUFS;
- key_sendup(so, msg0, PFKEY_UNUNIT64(msg0->sadb_msg_len),
- KEY_SENDUP_ONE); /*XXX*/
- }
+ m_adj(m, PFKEY_ALIGN8(sizeof(struct sadb_msg)));
- /* XXX if sadb_msg_seq is specified, send to specific pid */
- key_sendup(so, msg, len, KEY_SENDUP_ALL);
- KFREE(msg);
+ /* TODO: if sadb_msg_seq is specified, send to specific pid */
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ALL);
}
}
-/*
- * send message to the socket.
- * OUT:
- * 0 : success
- * others : fail
- */
-static int
-key_sendall(msg, len)
- struct sadb_msg *msg;
- u_int len;
-{
- struct secreg *reg;
- int error = 0;
-
- /* sanity check */
- if (msg == NULL)
- panic("key_sendall: NULL pointer is passed.\n");
-
- /* search table registerd socket to send a message. */
- LIST_FOREACH(reg, ®tree[msg->sadb_msg_satype], chain) {
- error = key_sendup(reg->so, msg, len, KEY_SENDUP_ONE);
- if (error != 0) {
-#if IPSEC_DEBUG
- if (error == ENOBUFS)
- printf("key_sendall: No more memory.\n");
- else {
- printf("key_sendall: key_sendup returned %d\n",
- error);
- }
-#endif
- KFREE(msg);
- return error;
- }
- }
-
- KFREE(msg);
- return 0;
-}
+static int (*key_typesw[]) __P((struct socket *, struct mbuf *,
+ const struct sadb_msghdr *)) = {
+ NULL, /* SADB_RESERVED */
+ key_getspi, /* SADB_GETSPI */
+ key_update, /* SADB_UPDATE */
+ key_add, /* SADB_ADD */
+ key_delete, /* SADB_DELETE */
+ key_get, /* SADB_GET */
+ key_acquire2, /* SADB_ACQUIRE */
+ key_register, /* SADB_REGISTER */
+ NULL, /* SADB_EXPIRE */
+ key_flush, /* SADB_FLUSH */
+ key_dump, /* SADB_DUMP */
+ key_promisc, /* SADB_X_PROMISC */
+ NULL, /* SADB_X_PCHANGE */
+ key_spdadd, /* SADB_X_SPDUPDATE */
+ key_spdadd, /* SADB_X_SPDADD */
+ key_spddelete, /* SADB_X_SPDDELETE */
+ key_spdget, /* SADB_X_SPDGET */
+ NULL, /* SADB_X_SPDACQUIRE */
+ key_spddump, /* SADB_X_SPDDUMP */
+ key_spdflush, /* SADB_X_SPDFLUSH */
+ key_spdadd, /* SADB_X_SPDSETIDX */
+ NULL, /* SADB_X_SPDEXPIRE */
+ key_spddelete2, /* SADB_X_SPDDELETE2 */
+};
/*
* parse sadb_msg buffer to process PFKEYv2,
* length for buffer to send to user process.
*/
int
-key_parse(msgp, so, targetp)
- struct sadb_msg **msgp;
+key_parse(m, so)
+ struct mbuf *m;
struct socket *so;
- int *targetp;
{
- struct sadb_msg *msg = *msgp, *newmsg = NULL;
- caddr_t mhp[SADB_EXT_MAX + 1];
+ struct sadb_msg *msg;
+ struct sadb_msghdr mh;
u_int orglen;
int error;
+ int target;
/* sanity check */
- if (msg == NULL || so == NULL)
+ if (m == NULL || so == NULL)
panic("key_parse: NULL pointer is passed.\n");
+#if 0 /*kdebug_sadb assumes msg in linear buffer*/
KEYDEBUG(KEYDEBUG_KEY_DUMP,
- printf("key_parse: passed sadb_msg\n");
+ ipseclog((LOG_DEBUG, "key_parse: passed sadb_msg\n"));
kdebug_sadb(msg));
+#endif
+ if (m->m_len < sizeof(struct sadb_msg)) {
+ m = m_pullup(m, sizeof(struct sadb_msg));
+ if (!m)
+ return ENOBUFS;
+ }
+ msg = mtod(m, struct sadb_msg *);
orglen = PFKEY_UNUNIT64(msg->sadb_msg_len);
+ target = KEY_SENDUP_ONE;
- if (targetp)
- *targetp = KEY_SENDUP_ONE;
+ if ((m->m_flags & M_PKTHDR) == 0 ||
+ m->m_pkthdr.len != m->m_pkthdr.len) {
+ ipseclog((LOG_DEBUG, "key_parse: invalid message length.\n"));
+ pfkeystat.out_invlen++;
+ error = EINVAL;
+ goto senderror;
+ }
- /* check version */
if (msg->sadb_msg_version != PF_KEY_V2) {
-#if IPSEC_DEBUG
- printf("key_parse: PF_KEY version %u is mismatched.\n",
- msg->sadb_msg_version);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_parse: PF_KEY version %u is mismatched.\n",
+ msg->sadb_msg_version));
pfkeystat.out_invver++;
- msg->sadb_msg_errno = EINVAL;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
- /* check type */
if (msg->sadb_msg_type > SADB_MAX) {
-#if IPSEC_DEBUG
- printf("key_parse: invalid type %u is passed.\n",
- msg->sadb_msg_type);
-#endif
- msg->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_parse: invalid type %u is passed.\n",
+ msg->sadb_msg_type));
pfkeystat.out_invmsgtype++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
+ }
+
+ /* for old-fashioned code - should be nuked */
+ if (m->m_pkthdr.len > MCLBYTES) {
+ m_freem(m);
+ return ENOBUFS;
+ }
+ if (m->m_next) {
+ struct mbuf *n;
+
+ MGETHDR(n, M_DONTWAIT, MT_DATA);
+ if (n && m->m_pkthdr.len > MHLEN) {
+ MCLGET(n, M_DONTWAIT);
+ if ((n->m_flags & M_EXT) == 0) {
+ m_free(n);
+ n = NULL;
+ }
+ }
+ if (!n) {
+ m_freem(m);
+ return ENOBUFS;
+ }
+ m_copydata(m, 0, m->m_pkthdr.len, mtod(n, caddr_t));
+ n->m_pkthdr.len = n->m_len = m->m_pkthdr.len;
+ n->m_next = NULL;
+ m_freem(m);
+ m = n;
}
- /* align message. */
- if (key_align(msg, mhp) != 0) {
- msg->sadb_msg_errno = EINVAL;
- return orglen;
+ /* align the mbuf chain so that extensions are in contiguous region. */
+ error = key_align(m, &mh);
+ if (error)
+ return error;
+
+ if (m->m_next) { /*XXX*/
+ m_freem(m);
+ return ENOBUFS;
}
+ msg = mh.msg;
+
/* check SA type */
switch (msg->sadb_msg_satype) {
case SADB_SATYPE_UNSPEC:
case SADB_GET:
case SADB_ACQUIRE:
case SADB_EXPIRE:
-#if IPSEC_DEBUG
- printf("key_parse: must specify satype "
- "when msg type=%u.\n",
- msg->sadb_msg_type);
-#endif
- msg->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_parse: must specify satype "
+ "when msg type=%u.\n", msg->sadb_msg_type));
pfkeystat.out_invsatype++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
break;
case SADB_SATYPE_AH:
case SADB_SATYPE_ESP:
-#if 1 /*nonstandard*/
case SADB_X_SATYPE_IPCOMP:
-#endif
switch (msg->sadb_msg_type) {
case SADB_X_SPDADD:
case SADB_X_SPDDELETE:
case SADB_X_SPDSETIDX:
case SADB_X_SPDUPDATE:
case SADB_X_SPDDELETE2:
-#if IPSEC_DEBUG
- printf("key_parse: illegal satype=%u\n",
- msg->sadb_msg_type);
-#endif
- msg->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_parse: illegal satype=%u\n",
+ msg->sadb_msg_type));
pfkeystat.out_invsatype++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
break;
case SADB_SATYPE_RSVP:
case SADB_SATYPE_OSPFV2:
case SADB_SATYPE_RIPV2:
case SADB_SATYPE_MIP:
-#if IPSEC_DEBUG
- printf("key_parse: type %u isn't supported.\n",
- msg->sadb_msg_satype);
-#endif
- msg->sadb_msg_errno = EOPNOTSUPP;
+ ipseclog((LOG_DEBUG, "key_parse: type %u isn't supported.\n",
+ msg->sadb_msg_satype));
pfkeystat.out_invsatype++;
- return orglen;
- case 1: /* XXX: What does it do ? */
+ error = EOPNOTSUPP;
+ goto senderror;
+ case 1: /* XXX: What does it do? */
if (msg->sadb_msg_type == SADB_X_PROMISC)
break;
/*FALLTHROUGH*/
default:
-#if IPSEC_DEBUG
- printf("key_parse: invalid type %u is passed.\n",
- msg->sadb_msg_satype);
-#endif
- msg->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_parse: invalid type %u is passed.\n",
+ msg->sadb_msg_satype));
pfkeystat.out_invsatype++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
/* check field of upper layer protocol and address family */
- if (mhp[SADB_EXT_ADDRESS_SRC] != NULL
- && mhp[SADB_EXT_ADDRESS_DST] != NULL) {
+ if (mh.ext[SADB_EXT_ADDRESS_SRC] != NULL
+ && mh.ext[SADB_EXT_ADDRESS_DST] != NULL) {
struct sadb_address *src0, *dst0;
- u_int prefix;
+ u_int plen;
- src0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_SRC]);
- dst0 = (struct sadb_address *)(mhp[SADB_EXT_ADDRESS_DST]);
+ src0 = (struct sadb_address *)(mh.ext[SADB_EXT_ADDRESS_SRC]);
+ dst0 = (struct sadb_address *)(mh.ext[SADB_EXT_ADDRESS_DST]);
/* check upper layer protocol */
if (src0->sadb_address_proto != dst0->sadb_address_proto) {
-#if IPSEC_DEBUG
- printf("key_parse: upper layer protocol mismatched.\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
+ ipseclog((LOG_DEBUG, "key_parse: upper layer protocol mismatched.\n"));
pfkeystat.out_invaddr++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
/* check family */
- if (PFKEY_ADDR_SADDR(src0)->sa_family
- != PFKEY_ADDR_SADDR(dst0)->sa_family) {
-#if IPSEC_DEBUG
- printf("key_parse: address family mismatched.\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
+ if (PFKEY_ADDR_SADDR(src0)->sa_family !=
+ PFKEY_ADDR_SADDR(dst0)->sa_family) {
+ ipseclog((LOG_DEBUG, "key_parse: address family mismatched.\n"));
+ pfkeystat.out_invaddr++;
+ error = EINVAL;
+ goto senderror;
+ }
+ if (PFKEY_ADDR_SADDR(src0)->sa_len !=
+ PFKEY_ADDR_SADDR(dst0)->sa_len) {
+ ipseclog((LOG_DEBUG,
+ "key_parse: address struct size mismatched.\n"));
pfkeystat.out_invaddr++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
- prefix = _INALENBYAF(PFKEY_ADDR_SADDR(src0)->sa_family) << 3;
-
- /* check max prefixlen */
- if (prefix < src0->sadb_address_prefixlen
- || prefix < dst0->sadb_address_prefixlen) {
-#if IPSEC_DEBUG
- printf("key_parse: illegal prefixlen.\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
+ switch (PFKEY_ADDR_SADDR(src0)->sa_family) {
+ case AF_INET:
+ if (PFKEY_ADDR_SADDR(src0)->sa_len !=
+ sizeof(struct sockaddr_in)) {
+ pfkeystat.out_invaddr++;
+ error = EINVAL;
+ goto senderror;
+ }
+ break;
+ case AF_INET6:
+ if (PFKEY_ADDR_SADDR(src0)->sa_len !=
+ sizeof(struct sockaddr_in6)) {
+ pfkeystat.out_invaddr++;
+ error = EINVAL;
+ goto senderror;
+ }
+ break;
+ default:
+ ipseclog((LOG_DEBUG,
+ "key_parse: unsupported address family.\n"));
pfkeystat.out_invaddr++;
- return orglen;
+ error = EAFNOSUPPORT;
+ goto senderror;
}
switch (PFKEY_ADDR_SADDR(src0)->sa_family) {
case AF_INET:
+ plen = sizeof(struct in_addr) << 3;
+ break;
case AF_INET6:
+ plen = sizeof(struct in6_addr) << 3;
break;
default:
-#if IPSEC_DEBUG
- printf("key_parse: invalid address family.\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
+ plen = 0; /*fool gcc*/
+ break;
+ }
+
+ /* check max prefix length */
+ if (src0->sadb_address_prefixlen > plen ||
+ dst0->sadb_address_prefixlen > plen) {
+ ipseclog((LOG_DEBUG,
+ "key_parse: illegal prefixlen.\n"));
pfkeystat.out_invaddr++;
- return orglen;
+ error = EINVAL;
+ goto senderror;
}
/*
*/
}
- switch (msg->sadb_msg_type) {
- case SADB_GETSPI:
- if ((newmsg = key_getspi(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_UPDATE:
- if ((newmsg = key_update(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_ADD:
- if ((newmsg = key_add(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_DELETE:
- if ((newmsg = key_delete(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_GET:
- if ((newmsg = key_get(mhp)) == NULL)
- return orglen;
- break;
-
- case SADB_ACQUIRE:
- if ((newmsg = key_acquire2(mhp)) == NULL)
- return orglen;
-
- if (newmsg == (struct sadb_msg *)~0) {
- /*
- * It's not need to reply because of the message
- * that was reporting an error occured from the KMd.
- */
- KFREE(msg);
- return 0;
- }
- break;
-
- case SADB_REGISTER:
- if ((newmsg = key_register(mhp, so)) == NULL)
- return orglen;
-#if 1
- if (targetp)
- *targetp = KEY_SENDUP_REGISTERED;
-#else
- /* send result to all registered sockets */
- KFREE(msg);
- key_sendall(newmsg, PFKEY_UNUNIT64(newmsg->sadb_msg_len));
- return 0;
-#endif
- break;
-
- case SADB_EXPIRE:
-#if IPSEC_DEBUG
- printf("key_parse: why is SADB_EXPIRE received ?\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- pfkeystat.out_invmsgtype++;
- return orglen;
-
- case SADB_FLUSH:
- if ((newmsg = key_flush(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_DUMP:
- /* key_dump will call key_sendup() on her own */
- error = key_dump(mhp, so, KEY_SENDUP_ONE);
- if (error) {
- msg->sadb_msg_errno = error;
- return orglen;
- } else {
- KFREE(msg);
- return 0;
- }
- break;
-
- case SADB_X_PROMISC:
- /* everything is handled in key_promisc() */
- key_promisc(mhp, so);
- KFREE(msg);
- return 0; /*nothing to reply*/
-
- case SADB_X_PCHANGE:
-#if IPSEC_DEBUG
- printf("key_parse: SADB_X_PCHANGE isn't supported.\n");
-#endif
- msg->sadb_msg_errno = EINVAL;
+ if (msg->sadb_msg_type >= sizeof(key_typesw)/sizeof(key_typesw[0]) ||
+ key_typesw[msg->sadb_msg_type] == NULL) {
pfkeystat.out_invmsgtype++;
- return orglen;
-#if 0
- if (targetp)
- *targetp = KEY_SENDUP_REGISTERED;
-#endif
-
- case SADB_X_SPDADD:
- case SADB_X_SPDSETIDX:
- case SADB_X_SPDUPDATE:
- if ((newmsg = key_spdadd(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_X_SPDDELETE:
- if ((newmsg = key_spddelete(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_X_SPDDELETE2:
- if ((newmsg = key_spddelete2(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
-
- case SADB_X_SPDGET:
- /* key_spdget will call key_sendup() on her own */
- error = key_spdget(mhp, so, KEY_SENDUP_ONE);
- if (error) {
- msg->sadb_msg_errno = error;
- return orglen;
- } else {
- KFREE(msg);
- return 0;
- }
- break;
+ error = EINVAL;
+ goto senderror;
+ }
- case SADB_X_SPDDUMP:
- /* key_spddump will call key_sendup() on her own */
- error = key_spddump(mhp, so, KEY_SENDUP_ONE);
- if (error) {
- msg->sadb_msg_errno = error;
- return orglen;
- } else {
- KFREE(msg);
- return 0;
- }
- break;
+ return (*key_typesw[msg->sadb_msg_type])(so, m, &mh);
- case SADB_X_SPDFLUSH:
- if ((newmsg = key_spdflush(mhp)) == NULL)
- return orglen;
- if (targetp)
- *targetp = KEY_SENDUP_ALL;
- break;
+senderror:
+ msg->sadb_msg_errno = error;
+ return key_sendup_mbuf(so, m, target);
+}
- default:
- msg->sadb_msg_errno = EOPNOTSUPP;
- return orglen;
- }
+static int
+key_senderror(so, m, code)
+ struct socket *so;
+ struct mbuf *m;
+ int code;
+{
+ struct sadb_msg *msg;
- /* switch from old sadb_msg to new one if success. */
- KFREE(msg);
- *msgp = newmsg;
+ if (m->m_len < sizeof(struct sadb_msg))
+ panic("invalid mbuf passed to key_senderror");
- return PFKEY_UNUNIT64((*msgp)->sadb_msg_len);
+ msg = mtod(m, struct sadb_msg *);
+ msg->sadb_msg_errno = code;
+ return key_sendup_mbuf(so, m, KEY_SENDUP_ONE);
}
/*
* set the pointer to each header into message buffer.
- * IN: msg: pointer to message buffer.
- * mhp: pointer to the buffer allocated like below:
- * caddr_t mhp[SADB_EXT_MAX + 1];
- * OUT: 0:
- * EINVAL:
+ * m will be freed on error.
+ * XXX larger-than-MCLBYTES extension?
*/
static int
-key_align(msg, mhp)
- struct sadb_msg *msg;
- caddr_t *mhp;
+key_align(m, mhp)
+ struct mbuf *m;
+ struct sadb_msghdr *mhp;
{
+ struct mbuf *n;
struct sadb_ext *ext;
- int tlen, extlen;
- int i;
+ size_t off, end;
+ int extlen;
+ int toff;
/* sanity check */
- if (msg == NULL || mhp == NULL)
+ if (m == NULL || mhp == NULL)
panic("key_align: NULL pointer is passed.\n");
+ if (m->m_len < sizeof(struct sadb_msg))
+ panic("invalid mbuf passed to key_align");
/* initialize */
- for (i = 0; i < SADB_EXT_MAX + 1; i++)
- mhp[i] = NULL;
+ bzero(mhp, sizeof(*mhp));
- mhp[0] = (caddr_t)msg;
+ mhp->msg = mtod(m, struct sadb_msg *);
+ mhp->ext[0] = (struct sadb_ext *)mhp->msg; /*XXX backward compat */
- tlen = PFKEY_UNUNIT64(msg->sadb_msg_len) - sizeof(struct sadb_msg);
- ext = (struct sadb_ext *)((caddr_t)msg + sizeof(struct sadb_msg));
+ end = PFKEY_UNUNIT64(mhp->msg->sadb_msg_len);
+ extlen = end; /*just in case extlen is not updated*/
+ for (off = sizeof(struct sadb_msg); off < end; off += extlen) {
+ n = m_pulldown(m, off, sizeof(struct sadb_ext), &toff);
+ if (!n) {
+ /* m is already freed */
+ return ENOBUFS;
+ }
+ ext = (struct sadb_ext *)(mtod(n, caddr_t) + toff);
- while (tlen > 0) {
/* set pointer */
switch (ext->sadb_ext_type) {
case SADB_EXT_SA:
- case SADB_EXT_LIFETIME_CURRENT:
- case SADB_EXT_LIFETIME_HARD:
- case SADB_EXT_LIFETIME_SOFT:
case SADB_EXT_ADDRESS_SRC:
case SADB_EXT_ADDRESS_DST:
case SADB_EXT_ADDRESS_PROXY:
+ case SADB_EXT_LIFETIME_CURRENT:
+ case SADB_EXT_LIFETIME_HARD:
+ case SADB_EXT_LIFETIME_SOFT:
case SADB_EXT_KEY_AUTH:
case SADB_EXT_KEY_ENCRYPT:
case SADB_EXT_IDENTITY_SRC:
case SADB_EXT_SUPPORTED_ENCRYPT:
case SADB_EXT_SPIRANGE:
case SADB_X_EXT_POLICY:
+ case SADB_X_EXT_SA2:
/* duplicate check */
/*
* XXX Are there duplication payloads of either
* KEY_AUTH or KEY_ENCRYPT ?
*/
- if (mhp[ext->sadb_ext_type] != NULL) {
-#if IPSEC_DEBUG
- printf("key_align: duplicate ext_type %u "
- "is passed.\n",
- ext->sadb_ext_type);
-#endif
+ if (mhp->ext[ext->sadb_ext_type] != NULL) {
+ ipseclog((LOG_DEBUG,
+ "key_align: duplicate ext_type %u "
+ "is passed.\n", ext->sadb_ext_type));
+ m_freem(m);
pfkeystat.out_dupext++;
return EINVAL;
}
- mhp[ext->sadb_ext_type] = (caddr_t)ext;
break;
default:
-#if IPSEC_DEBUG
- printf("key_align: invalid ext_type %u is passed.\n",
- ext->sadb_ext_type);
-#endif
+ ipseclog((LOG_DEBUG,
+ "key_align: invalid ext_type %u is passed.\n",
+ ext->sadb_ext_type));
+ m_freem(m);
pfkeystat.out_invexttype++;
return EINVAL;
}
extlen = PFKEY_UNUNIT64(ext->sadb_ext_len);
- tlen -= extlen;
- ext = (struct sadb_ext *)((caddr_t)ext + extlen);
+
+ if (key_validate_ext(ext, extlen)) {
+ m_freem(m);
+ pfkeystat.out_invlen++;
+ return EINVAL;
+ }
+
+ n = m_pulldown(m, off, extlen, &toff);
+ if (!n) {
+ /* m is already freed */
+ return ENOBUFS;
+ }
+ ext = (struct sadb_ext *)(mtod(n, caddr_t) + toff);
+
+ mhp->ext[ext->sadb_ext_type] = ext;
+ mhp->extoff[ext->sadb_ext_type] = off;
+ mhp->extlen[ext->sadb_ext_type] = extlen;
+ }
+
+ if (off != end) {
+ m_freem(m);
+ pfkeystat.out_invlen++;
+ return EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+key_validate_ext(ext, len)
+ const struct sadb_ext *ext;
+ int len;
+{
+ struct sockaddr *sa;
+ enum { NONE, ADDR } checktype = NONE;
+ int baselen;
+ const int sal = offsetof(struct sockaddr, sa_len) + sizeof(sa->sa_len);
+
+ if (len != PFKEY_UNUNIT64(ext->sadb_ext_len))
+ return EINVAL;
+
+ /* if it does not match minimum/maximum length, bail */
+ if (ext->sadb_ext_type >= sizeof(minsize) / sizeof(minsize[0]) ||
+ ext->sadb_ext_type >= sizeof(maxsize) / sizeof(maxsize[0]))
+ return EINVAL;
+ if (!minsize[ext->sadb_ext_type] || len < minsize[ext->sadb_ext_type])
+ return EINVAL;
+ if (maxsize[ext->sadb_ext_type] && len > maxsize[ext->sadb_ext_type])
+ return EINVAL;
+
+ /* more checks based on sadb_ext_type XXX need more */
+ switch (ext->sadb_ext_type) {
+ case SADB_EXT_ADDRESS_SRC:
+ case SADB_EXT_ADDRESS_DST:
+ case SADB_EXT_ADDRESS_PROXY:
+ baselen = PFKEY_ALIGN8(sizeof(struct sadb_address));
+ checktype = ADDR;
+ break;
+ case SADB_EXT_IDENTITY_SRC:
+ case SADB_EXT_IDENTITY_DST:
+ if (((struct sadb_ident *)ext)->sadb_ident_type ==
+ SADB_X_IDENTTYPE_ADDR) {
+ baselen = PFKEY_ALIGN8(sizeof(struct sadb_ident));
+ checktype = ADDR;
+ } else
+ checktype = NONE;
+ break;
+ default:
+ checktype = NONE;
+ break;
+ }
+
+ switch (checktype) {
+ case NONE:
+ break;
+ case ADDR:
+ sa = (struct sockaddr *)((caddr_t)ext + baselen);
+ if (len < baselen + sal)
+ return EINVAL;
+ if (baselen + PFKEY_ALIGN8(sa->sa_len) != len)
+ return EINVAL;
+ break;
}
return 0;
LIST_INIT(&spacqtree);
/* system default */
+#if INET
ip4_def_policy.policy = IPSEC_POLICY_NONE;
ip4_def_policy.refcnt++; /*never reclaim this*/
+#endif
#if INET6
ip6_def_policy.policy = IPSEC_POLICY_NONE;
ip6_def_policy.refcnt++; /*never reclaim this*/
#endif
#ifndef IPSEC_DEBUG2
- timeout((void *)key_timehandler, (void *)0, hz);
+ timeout((void *)key_timehandler_funnel, (void *)0, hz);
#endif /*IPSEC_DEBUG2*/
/* initialize key statistics */
keystat.getspi_count = 1;
+#ifndef __APPLE__
printf("IPsec: Initialized Security Association Processing.\n");
+#endif
return;
}
}
#if 0
-#ifdef __FreeBSD__
#define hostnamelen strlen(hostname)
-#endif
/*
* Get FQDN for the host.
ro = &sah->sa_route;
if (ro->ro_rt && dst->sa_len == ro->ro_dst.sa_len
&& bcmp(dst, &ro->ro_dst, dst->sa_len) == 0) {
- RTFREE(ro->ro_rt);
+ rtfree(ro->ro_rt);
ro->ro_rt = (struct rtentry *)NULL;
}
}
LIST_INSERT_HEAD(&sav->sah->savtree[state], sav, chain);
}
-/* returns NULL on error, m0 will be left unchanged */
-static caddr_t
-key_appendmbuf(m0, len)
- struct mbuf *m0;
- int len;
+void
+key_sa_stir_iv(sav)
+ struct secasvar *sav;
{
- caddr_t p;
- struct mbuf *m;
- struct mbuf *n;
-
- if (!m0 || (m0->m_flags & M_PKTHDR) == 0)
- return NULL; /*EINVAL*/
- if (len > MCLBYTES)
- return NULL; /*EINVAL*/
- for (m = m0; m && m->m_next; m = m->m_next)
- ;
- if (len <= M_TRAILINGSPACE(m)) {
- p = mtod(m, caddr_t) + m->m_len;
- m->m_len += len;
- m0->m_pkthdr.len += len;
-
- return p;
- }
- MGET(n, M_DONTWAIT, m->m_type);
- if (n != NULL) {
- MCLGET(n, M_DONTWAIT);
- if ((n->m_flags & M_EXT) == 0) {
- m_freem(n);
- n = NULL;
- }
- }
- if (n == NULL)
- return NULL; /*ENOBUFS*/
- n->m_next = NULL;
- m->m_next = n;
- n->m_len = len;
- m0->m_pkthdr.len += len;
-
- return mtod(n, caddr_t);
+ if (!sav->iv)
+ panic("key_sa_stir_iv called with sav == NULL");
+ key_randomfill(sav->iv, sav->ivlen);
}
-#ifdef __bsdi__
-#include <sys/user.h>
-#include <sys/sysctl.h>
-
-int *key_sysvars[] = KEYCTL_VARS;
-
-int
-key_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
- int *name;
- u_int namelen;
- void *oldp;
- size_t *oldlenp;
- void *newp;
- size_t newlen;
+/* XXX too much? */
+static struct mbuf *
+key_alloc_mbuf(l)
+ int l;
{
- if (name[0] >= KEYCTL_MAXID)
- return EOPNOTSUPP;
- switch (name[0]) {
- default:
- return sysctl_int_arr(key_sysvars, name, namelen,
- oldp, oldlenp, newp, newlen);
- }
-}
-#endif /*__bsdi__*/
+ struct mbuf *m = NULL, *n;
+ int len, t;
+
+ len = l;
+ while (len > 0) {
+ MGET(n, M_DONTWAIT, MT_DATA);
+ if (n && len > MLEN)
+ MCLGET(n, M_DONTWAIT);
+ if (!n) {
+ m_freem(m);
+ return NULL;
+ }
-#ifdef __NetBSD__
-#include <vm/vm.h>
-#include <sys/sysctl.h>
+ n->m_next = NULL;
+ n->m_len = 0;
+ n->m_len = M_TRAILINGSPACE(n);
+ /* use the bottom of mbuf, hoping we can prepend afterwards */
+ if (n->m_len > len) {
+ t = (n->m_len - len) & ~(sizeof(long) - 1);
+ n->m_data += t;
+ n->m_len = len;
+ }
-static int *key_sysvars[] = KEYCTL_VARS;
+ len -= n->m_len;
-int
-key_sysctl(name, namelen, oldp, oldlenp, newp, newlen)
- int *name;
- u_int namelen;
- void *oldp;
- size_t *oldlenp;
- void *newp;
- size_t newlen;
-{
- if (name[0] >= KEYCTL_MAXID)
- return EOPNOTSUPP;
- if (!key_sysvars[name[0]])
- return EOPNOTSUPP;
- switch (name[0]) {
- default:
- return sysctl_int(oldp, oldlenp, newp, newlen,
- key_sysvars[name[0]]);
+ if (m)
+ m_cat(m, n);
+ else
+ m = n;
}
+
+ return m;
}
-#endif /*__NetBSD__*/
projects / apple / xnu.git / blobdiff