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hide m_tag, again.

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Requested by:	sam
This commit is contained in:
Hajimu UMEMOTO 2003-10-29 12:49:12 +00:00
parent 352ee8d554
commit 1410779a4f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=121673
3 changed files with 21 additions and 38 deletions
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48
sys/netinet6/ip6_input.c
View File

@ -157,7 +157,7 @@ int ip6_fw_enable = 1;
struct ip6stat ip6stat;
static void ip6_init2 __P((void *));
static struct m_tag *ip6_setdstifaddr __P((struct mbuf *, struct in6_ifaddr *));
static struct ip6aux *ip6_setdstifaddr __P((struct mbuf *, struct in6_ifaddr *));
static int ip6_hopopts_input __P((u_int32_t *, u_int32_t *, struct mbuf **, int *));
#ifdef PULLDOWN_TEST
static struct mbuf *ip6_pullexthdr __P((struct mbuf *, size_t, int));
@ -719,7 +719,7 @@ ip6_input(m)
} else if (!ours) {
ip6_forward(m, srcrt);
return;
}
}
ip6 = mtod(m, struct ip6_hdr *);
@ -762,22 +762,6 @@ ip6_input(m)
goto bad;
}
#if 0
/*
* do we need to do it for every header? yeah, other
* functions can play with it (like re-allocate and copy).
*/
mhist = ip6_addaux(m);
if (mhist && M_TRAILINGSPACE(mhist) >= sizeof(nxt)) {
hist = mtod(mhist, caddr_t) + mhist->m_len;
bcopy(&nxt, hist, sizeof(nxt));
mhist->m_len += sizeof(nxt);
} else {
ip6stat.ip6s_toomanyhdr++;
goto bad;
}
#endif
#ifdef IPSEC
/*
* enforce IPsec policy checking if we are seeing last header.
@ -801,28 +785,28 @@ ip6_input(m)
* set/grab in6_ifaddr correspond to IPv6 destination address.
* XXX backward compatibility wrapper
*/
static struct m_tag *
static struct ip6aux *
ip6_setdstifaddr(m, ia6)
struct mbuf *m;
struct in6_ifaddr *ia6;
{
struct m_tag *mtag;
struct ip6aux *ip6a;
mtag = ip6_addaux(m);
if (mtag)
((struct ip6aux *)(mtag + 1))->ip6a_dstia6 = ia6;
return mtag; /* NULL if failed to set */
ip6a = ip6_addaux(m);
if (ip6a)
ip6a->ip6a_dstia6 = ia6;
return ip6a; /* NULL if failed to set */
}
struct in6_ifaddr *
ip6_getdstifaddr(m)
struct mbuf *m;
{
struct m_tag *mtag;
struct ip6aux *ip6a;
mtag = ip6_findaux(m);
if (mtag)
return ((struct ip6aux *)(mtag + 1))->ip6a_dstia6;
ip6a = ip6_findaux(m);
if (ip6a)
return ip6a->ip6a_dstia6;
else
return NULL;
}
@ -1537,7 +1521,7 @@ ip6_lasthdr(m, off, proto, nxtp)
}
}
struct m_tag *
struct ip6aux *
ip6_addaux(m)
struct mbuf *m;
{
@ -1552,17 +1536,17 @@ ip6_addaux(m)
bzero(mtag + 1, sizeof(struct ip6aux));
}
}
return mtag;
return mtag ? (struct ip6aux *)(mtag + 1) : NULL;
}
struct m_tag *
struct ip6aux *
ip6_findaux(m)
struct mbuf *m;
{
struct m_tag *mtag;
mtag = m_tag_find(m, PACKET_TAG_IPV6_INPUT, NULL);
return mtag;
return mtag ? (struct ip6aux *)(mtag + 1) : NULL;
}
void

4
sys/netinet6/ip6_var.h
View File

@ -345,8 +345,8 @@ char * ip6_get_prevhdr __P((struct mbuf *, int));
int ip6_nexthdr __P((struct mbuf *, int, int, int *));
int ip6_lasthdr __P((struct mbuf *, int, int, int *));
struct m_tag *ip6_addaux __P((struct mbuf *));
struct m_tag *ip6_findaux __P((struct mbuf *));
struct ip6aux *ip6_addaux __P((struct mbuf *));
struct ip6aux *ip6_findaux __P((struct mbuf *));
void ip6_delaux __P((struct mbuf *));
int ip6_mforward __P((struct ip6_hdr *, struct ifnet *, struct mbuf *));

7
sys/netinet6/route6.c
View File

@ -60,11 +60,10 @@ route6_input(mp, offp, proto)
struct mbuf *m = *mp;
struct ip6_rthdr *rh;
int off = *offp, rhlen;
struct m_tag *mtag;
struct ip6aux *ip6a;
mtag = ip6_findaux(m);
if (mtag) {
struct ip6aux *ip6a = (struct ip6aux *)(mtag + 1);
ip6a = ip6_findaux(m);
if (ip6a) {
/* XXX reject home-address option before rthdr */
if (ip6a->ip6a_flags & IP6A_SWAP) {
ip6stat.ip6s_badoptions++;