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[src/trunk]: src/sys/netipsec merge duplicated code, more informative debugging.
details: https://anonhg.NetBSD.org/src/rev/ed43118f5642
branches: trunk
changeset: 320405:ed43118f5642
user: christos <christos%NetBSD.org@localhost>
date: Wed Jul 04 19:20:25 2018 +0000
description:
merge duplicated code, more informative debugging.
diffstat:
sys/netipsec/key.c | 125 ++++++++++++++++++++++++++++++----------------------
1 files changed, 73 insertions(+), 52 deletions(-)
diffs (248 lines):
diff -r c50a63a7facf -r ed43118f5642 sys/netipsec/key.c
--- a/sys/netipsec/key.c Wed Jul 04 18:15:27 2018 +0000
+++ b/sys/netipsec/key.c Wed Jul 04 19:20:25 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: key.c,v 1.255 2018/04/28 15:45:16 maxv Exp $ */
+/* $NetBSD: key.c,v 1.256 2018/07/04 19:20:25 christos Exp $ */
/* $FreeBSD: key.c,v 1.3.2.3 2004/02/14 22:23:23 bms Exp $ */
/* $KAME: key.c,v 1.191 2001/06/27 10:46:49 sakane Exp $ */
@@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.255 2018/04/28 15:45:16 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.256 2018/07/04 19:20:25 christos Exp $");
/*
* This code is referred to RFC 2367
@@ -113,7 +113,7 @@
#include <netipsec/xform.h>
#include <netipsec/ipcomp.h>
-#define FULLMASK 0xff
+#define FULLMASK 0xffu
#define _BITS(bytes) ((bytes) << 3)
#define PORT_NONE 0
@@ -994,7 +994,8 @@
KEYDEBUG_PRINTF(KEYDEBUG_IPSEC_STAMP, "DP from %s:%u\n", where, tag);
if (isrc->sa_family != idst->sa_family) {
- IPSECLOG(LOG_ERR, "protocol family mismatched %d != %d\n.",
+ IPSECLOG(LOG_ERR,
+ "address family mismatched src %u, dst %u.\n",
isrc->sa_family, idst->sa_family);
sp = NULL;
goto done;
@@ -1185,14 +1186,14 @@
/* set sadb_address for saidx's. */
m = key_setsadbaddr(SADB_EXT_ADDRESS_SRC, &sav->sah->saidx.src.sa,
- sav->sah->saidx.src.sa.sa_len << 3, IPSEC_ULPROTO_ANY);
+ _BITS(sav->sah->saidx.src.sa.sa_len), IPSEC_ULPROTO_ANY);
if (m == NULL)
goto msgfail;
m_cat(result, m);
/* set sadb_address for saidx's. */
m = key_setsadbaddr(SADB_EXT_ADDRESS_DST, &sav->sah->saidx.src.sa,
- sav->sah->saidx.src.sa.sa_len << 3, IPSEC_ULPROTO_ANY);
+ _BITS(sav->sah->saidx.src.sa.sa_len), IPSEC_ULPROTO_ANY);
if (m == NULL)
goto msgfail;
m_cat(result, m);
@@ -3458,7 +3459,9 @@
/* check address family */
if (saidx->src.sa.sa_family != saidx->dst.sa.sa_family) {
- IPSECLOG(LOG_DEBUG, "address family mismatched.\n");
+ IPSECLOG(LOG_DEBUG,
+ "address family mismatched src %u, dst %u.\n",
+ saidx->src.sa.sa_family, saidx->dst.sa.sa_family);
return false;
}
@@ -3764,6 +3767,31 @@
break;
}
+ /* check algo */
+ switch (sav->sah->saidx.proto) {
+ case IPPROTO_AH:
+ case IPPROTO_TCP:
+ if (sav->alg_enc != SADB_EALG_NONE) {
+ IPSECLOG(LOG_DEBUG,
+ "protocol %u and algorithm mismatched %u != %u.\n",
+ sav->sah->saidx.proto,
+ sav->alg_enc, SADB_EALG_NONE);
+ return EINVAL;
+ }
+ break;
+ case IPPROTO_IPCOMP:
+ if (sav->alg_auth != SADB_AALG_NONE) {
+ IPSECLOG(LOG_DEBUG,
+ "protocol %u and algorithm mismatched %d != %d.\n",
+ sav->sah->saidx.proto,
+ sav->alg_auth, SADB_AALG_NONE);
+ return(EINVAL);
+ }
+ break;
+ default:
+ break;
+ }
+
/* check satype */
switch (sav->sah->saidx.proto) {
case IPPROTO_ESP:
@@ -3783,32 +3811,17 @@
"invalid flag (derived) given to AH SA.\n");
return EINVAL;
}
- if (sav->alg_enc != SADB_EALG_NONE) {
- IPSECLOG(LOG_DEBUG,
- "protocol and algorithm mismated.\n");
- return(EINVAL);
- }
error = xform_init(sav, XF_AH);
break;
case IPPROTO_IPCOMP:
- if (sav->alg_auth != SADB_AALG_NONE) {
- IPSECLOG(LOG_DEBUG,
- "protocol and algorithm mismated.\n");
- return(EINVAL);
- }
if ((sav->flags & SADB_X_EXT_RAWCPI) == 0
- && ntohl(sav->spi) >= 0x10000) {
+ && ntohl(sav->spi) >= 0x10000) {
IPSECLOG(LOG_DEBUG, "invalid cpi for IPComp.\n");
return(EINVAL);
}
error = xform_init(sav, XF_IPCOMP);
break;
case IPPROTO_TCP:
- if (sav->alg_enc != SADB_EALG_NONE) {
- IPSECLOG(LOG_DEBUG,
- "protocol and algorithm mismated.\n");
- return(EINVAL);
- }
error = xform_init(sav, XF_TCPSIGNATURE);
break;
default:
@@ -4217,6 +4230,19 @@
return m;
}
+static uint8_t
+key_sabits(const struct sockaddr *saddr)
+{
+ switch (saddr->sa_family) {
+ case AF_INET:
+ return _BITS(sizeof(struct in_addr));
+ case AF_INET6:
+ return _BITS(sizeof(struct in6_addr));
+ default:
+ return FULLMASK;
+ }
+}
+
/*
* set data into sadb_address.
*/
@@ -4244,16 +4270,7 @@
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*/
- }
+ prefixlen = key_sabits(saddr);
}
p->sadb_address_prefixlen = prefixlen;
p->sadb_address_reserved = 0;
@@ -6020,7 +6037,8 @@
/* validity check */
if (idsrc->sadb_ident_type != iddst->sadb_ident_type) {
- IPSECLOG(LOG_DEBUG, "ident type mismatch.\n");
+ IPSECLOG(LOG_DEBUG, "ident type mismatched src %u, dst %u.\n",
+ idsrc->sadb_ident_type, iddst->sadb_ident_type);
return EINVAL;
}
@@ -7842,47 +7860,50 @@
/* check upper layer protocol */
if (src0->sadb_address_proto != dst0->sadb_address_proto) {
IPSECLOG(LOG_DEBUG,
- "upper layer protocol mismatched.\n");
+ "upper layer protocol mismatched src %u, dst %u.\n",
+ src0->sadb_address_proto, dst0->sadb_address_proto);
+
goto invaddr;
}
/* check family */
if (sa0->sa_family != da0->sa_family) {
- IPSECLOG(LOG_DEBUG, "address family mismatched.\n");
+ IPSECLOG(LOG_DEBUG,
+ "address family mismatched src %u, dst %u.\n",
+ sa0->sa_family, da0->sa_family);
goto invaddr;
}
if (sa0->sa_len != da0->sa_len) {
IPSECLOG(LOG_DEBUG,
- "address struct size mismatched.\n");
+ "address size mismatched src %u, dst %u.\n",
+ sa0->sa_len, da0->sa_len);
goto invaddr;
}
switch (sa0->sa_family) {
case AF_INET:
- if (sa0->sa_len != sizeof(struct sockaddr_in))
+ if (sa0->sa_len != sizeof(struct sockaddr_in)) {
+ IPSECLOG(LOG_DEBUG,
+ "address size mismatched %u != %zu.\n",
+ sa0->sa_len, sizeof(struct sockaddr_in));
goto invaddr;
+ }
break;
case AF_INET6:
- if (sa0->sa_len != sizeof(struct sockaddr_in6))
+ if (sa0->sa_len != sizeof(struct sockaddr_in6)) {
+ IPSECLOG(LOG_DEBUG,
+ "address size mismatched %u != %zu.\n",
+ sa0->sa_len, sizeof(struct sockaddr_in6));
goto invaddr;
+ }
break;
default:
- IPSECLOG(LOG_DEBUG, "unsupported address family.\n");
+ IPSECLOG(LOG_DEBUG, "unsupported address family %u.\n",
+ sa0->sa_family);
error = EAFNOSUPPORT;
goto senderror;
}
-
- switch (sa0->sa_family) {
- case AF_INET:
- plen = sizeof(struct in_addr) << 3;
- break;
- case AF_INET6:
- plen = sizeof(struct in6_addr) << 3;
- break;
- default:
- plen = 0; /*fool gcc*/
- break;
- }
+ plen = key_sabits(sa0);
/* check max prefix length */
if (src0->sadb_address_prefixlen > plen ||
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