Trying again to get this to netdev, sorry if duplicate...
Subject: [PATCH 1/2] [IPV6]: Support several new sockopt / ancillary data in
Advanced API (RFC3542).
Thanks for getting a lot of this update done.
+/* RFC3542 advanced socket options (50-67) */
+#define IPV6_RECVPKTINFO 50
+#define IPV6_PKTINFO 51
+#if 0
+#define IPV6_RECVPATHMTU 52
+#define IPV6_PATHMTU 53
+#define IPV6_DONTFRAG 54
+#define IPV6_USE_MIN_MTU 55
+#endif
+#define IPV6_RECVHOPOPTS 56
+#define IPV6_HOPOPTS 57
+#if 0
+#define IPV6_RECVRTHDRDSTOPTS 58 /* Unused, see net/ipv6/datagram.c */
+#endif
+#define IPV6_RTHDRDSTOPTS 59
+#define IPV6_RECVRTHDR 60
+#define IPV6_RTHDR 61
+#define IPV6_RECVDSTOPTS 62
+#define IPV6_DSTOPTS 63
+#define IPV6_RECVHOPLIMIT 64
+#define IPV6_HOPLIMIT 65
+#if 0
+#define IPV6_RECVTCLASS 66
+#define IPV6_TCLASS 67
+#endif
+
#endif
So some of these are defined, but never used, for example all of *MTU
and DONTFRAG, are these being worked on or do you want some patches?
I've also attached a patch I sent out last October to bring the Type 0
routing header inline with 3542, but I've left the addr field since it
doesn't take up any space and makes the code that uses it cleaner. This
of course also requires changes in glibc (?) for
/usr/include/netinet/ip6.h, etc.
Thanks,
-Brian
Signed-off-by: Brian Haley [EMAIL PROTECTED]
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -68,7 +68,7 @@ struct ipv6_opt_hdr {
struct rt0_hdr {
struct ipv6_rt_hdr rt_hdr;
- __u32 bitmap; /* strict/loose bit map */
+ __u32 reserved;
struct in6_addr addr[0];
#define rt0_type rt_hdr.type
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -404,8 +404,7 @@ ipv6_invert_rthdr(struct sock *sk, struc
memcpy(opt->srcrt, hdr, sizeof(*hdr));
irthdr = (struct rt0_hdr*)opt->srcrt;
- /* Obsolete field, MBZ, when originated by us */
- irthdr->bitmap = 0;
+ irthdr->reserved = 0;
opt->srcrt->segments_left = n;
for (i=0; i<n; i++)
memcpy(irthdr->addr+i, rthdr->addr+(n-1-i), 16);
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -161,8 +161,8 @@ match(const struct sk_buff *skb,
((rtinfo->hdrlen == hdrlen) ^
!!(rtinfo->invflags & IP6T_RT_INV_LEN))));
DEBUGP("res %02X %02X %02X ",
- (rtinfo->flags & IP6T_RT_RES), ((struct rt0_hdr *)rh)->bitmap,
- !((rtinfo->flags & IP6T_RT_RES) && (((struct rt0_hdr *)rh)->bitmap)));
+ (rtinfo->flags & IP6T_RT_RES), ((struct rt0_hdr *)rh)->reserved,
+ !((rtinfo->flags & IP6T_RT_RES) && (((struct rt0_hdr *)rh)->reserved)));
ret = (rh != NULL)
&&
@@ -179,12 +179,12 @@ match(const struct sk_buff *skb,
!!(rtinfo->invflags & IP6T_RT_INV_TYP)));
if (ret && (rtinfo->flags & IP6T_RT_RES)) {
- u_int32_t *bp, _bitmap;
- bp = skb_header_pointer(skb,
- ptr + offsetof(struct rt0_hdr, bitmap),
- sizeof(_bitmap), &_bitmap);
+ u_int32_t *rp, _reserved;
+ rp = skb_header_pointer(skb,
+ ptr + offsetof(struct rt0_hdr, reserved),
+ sizeof(_reserved), &_reserved);
- ret = (*bp == 0);
+ ret = (*rp == 0);
}
DEBUGP("#%d ",rtinfo->addrnr);
