diff options
Diffstat (limited to 'sys/netinet6/ip6_input.c')
| -rw-r--r-- | sys/netinet6/ip6_input.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c index 7b4e4dc..e6ca375 100644 --- a/sys/netinet6/ip6_input.c +++ b/sys/netinet6/ip6_input.c @@ -1042,8 +1042,9 @@ ip6_unknown_opt(u_int8_t *optp, struct mbuf *m, int off) * ip6_savecontrol will directly call ip6_savecontrol_v4 to handle those * options and handle the v6-only ones itself. */ -int -ip6_savecontrol_v4(struct inpcb *inp, struct mbuf *m, struct mbuf **mp) +struct mbuf ** +ip6_savecontrol_v4(struct inpcb *inp, struct mbuf *m, struct mbuf **mp, + int *v4only) { struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); @@ -1059,8 +1060,11 @@ ip6_savecontrol_v4(struct inpcb *inp, struct mbuf *m, struct mbuf **mp) } #endif - if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) - return (1); + if ((ip6->ip6_vfc & IPV6_VERSION_MASK) != IPV6_VERSION) { + if (v4only != NULL) + *v4only = 1; + return (mp); + } #define IS2292(inp, x, y) (((inp)->inp_flags & IN6P_RFC2292) ? (x) : (y)) /* RFC 2292 sec. 5 */ @@ -1089,15 +1093,19 @@ ip6_savecontrol_v4(struct inpcb *inp, struct mbuf *m, struct mbuf **mp) mp = &(*mp)->m_next; } - return (0); + if (v4only != NULL) + *v4only = 0; + return (mp); } void ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp) { struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *); + int v4only = 0; - if (ip6_savecontrol_v4(in6p, m, mp) != 0) + mp = ip6_savecontrol_v4(in6p, m, mp, &v4only); + if (v4only) return; if ((in6p->in6p_flags & IN6P_TCLASS) != 0) { |
