* 2 of the License, or (at your option) any later version.
*/
+#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/kernel.h>
if (!fl.oif && (addr_type&IPV6_ADDR_MULTICAST))
fl.oif = np->mcast_oif;
+ security_sk_classify_flow(sk, &fl);
+
if (flowlabel) {
if (flowlabel->opt && flowlabel->opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) flowlabel->opt->srcrt;
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0) {
- dst_release(dst);
+ if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0)
goto out;
- }
/* source address lookup done in ip6_dst_lookup */
ip6_dst_store(sk, dst,
ipv6_addr_equal(&fl.fl6_dst, &np->daddr) ?
- &np->daddr : NULL);
+ &np->daddr : NULL,
+#ifdef CONFIG_IPV6_SUBTREES
+ ipv6_addr_equal(&fl.fl6_src, &np->saddr) ?
+ &np->saddr :
+#endif
+ NULL);
sk->sk_state = TCP_ESTABLISHED;
out:
put_cmsg(msg, SOL_IPV6, IPV6_HOPLIMIT, sizeof(hlim), &hlim);
}
+ if (np->rxopt.bits.rxtclass) {
+ int tclass = (ntohl(*(u32 *)skb->nh.ipv6h) >> 20) & 0xff;
+ put_cmsg(msg, SOL_IPV6, IPV6_TCLASS, sizeof(tclass), &tclass);
+ }
+
if (np->rxopt.bits.rxflow && (*(u32*)skb->nh.raw & IPV6_FLOWINFO_MASK)) {
u32 flowinfo = *(u32*)skb->nh.raw & IPV6_FLOWINFO_MASK;
put_cmsg(msg, SOL_IPV6, IPV6_FLOWINFO, sizeof(flowinfo), &flowinfo);
}
+
+ /* HbH is allowed only once */
if (np->rxopt.bits.hopopts && opt->hop) {
u8 *ptr = skb->nh.raw + opt->hop;
put_cmsg(msg, SOL_IPV6, IPV6_HOPOPTS, (ptr[1]+1)<<3, ptr);
}
- if (np->rxopt.bits.dstopts && opt->dst0) {
+
+ if (opt->lastopt &&
+ (np->rxopt.bits.dstopts || np->rxopt.bits.srcrt)) {
+ /*
+ * Silly enough, but we need to reparse in order to
+ * report extension headers (except for HbH)
+ * in order.
+ *
+ * Also note that IPV6_RECVRTHDRDSTOPTS is NOT
+ * (and WILL NOT be) defined because
+ * IPV6_RECVDSTOPTS is more generic. --yoshfuji
+ */
+ unsigned int off = sizeof(struct ipv6hdr);
+ u8 nexthdr = skb->nh.ipv6h->nexthdr;
+
+ while (off <= opt->lastopt) {
+ unsigned len;
+ u8 *ptr = skb->nh.raw + off;
+
+ switch(nexthdr) {
+ case IPPROTO_DSTOPTS:
+ nexthdr = ptr[0];
+ len = (ptr[1] + 1) << 3;
+ if (np->rxopt.bits.dstopts)
+ put_cmsg(msg, SOL_IPV6, IPV6_DSTOPTS, len, ptr);
+ break;
+ case IPPROTO_ROUTING:
+ nexthdr = ptr[0];
+ len = (ptr[1] + 1) << 3;
+ if (np->rxopt.bits.srcrt)
+ put_cmsg(msg, SOL_IPV6, IPV6_RTHDR, len, ptr);
+ break;
+ case IPPROTO_AH:
+ nexthdr = ptr[0];
+ len = (ptr[1] + 2) << 2;
+ break;
+ default:
+ nexthdr = ptr[0];
+ len = (ptr[1] + 1) << 3;
+ break;
+ }
+
+ off += len;
+ }
+ }
+
+ /* socket options in old style */
+ if (np->rxopt.bits.rxoinfo) {
+ struct in6_pktinfo src_info;
+
+ src_info.ipi6_ifindex = opt->iif;
+ ipv6_addr_copy(&src_info.ipi6_addr, &skb->nh.ipv6h->daddr);
+ put_cmsg(msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
+ }
+ if (np->rxopt.bits.rxohlim) {
+ int hlim = skb->nh.ipv6h->hop_limit;
+ put_cmsg(msg, SOL_IPV6, IPV6_2292HOPLIMIT, sizeof(hlim), &hlim);
+ }
+ if (np->rxopt.bits.ohopopts && opt->hop) {
+ u8 *ptr = skb->nh.raw + opt->hop;
+ put_cmsg(msg, SOL_IPV6, IPV6_2292HOPOPTS, (ptr[1]+1)<<3, ptr);
+ }
+ if (np->rxopt.bits.odstopts && opt->dst0) {
u8 *ptr = skb->nh.raw + opt->dst0;
- put_cmsg(msg, SOL_IPV6, IPV6_DSTOPTS, (ptr[1]+1)<<3, ptr);
+ put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
}
- if (np->rxopt.bits.srcrt && opt->srcrt) {
+ if (np->rxopt.bits.osrcrt && opt->srcrt) {
struct ipv6_rt_hdr *rthdr = (struct ipv6_rt_hdr *)(skb->nh.raw + opt->srcrt);
- put_cmsg(msg, SOL_IPV6, IPV6_RTHDR, (rthdr->hdrlen+1) << 3, rthdr);
+ put_cmsg(msg, SOL_IPV6, IPV6_2292RTHDR, (rthdr->hdrlen+1) << 3, rthdr);
}
- if (np->rxopt.bits.dstopts && opt->dst1) {
+ if (np->rxopt.bits.odstopts && opt->dst1) {
u8 *ptr = skb->nh.raw + opt->dst1;
- put_cmsg(msg, SOL_IPV6, IPV6_DSTOPTS, (ptr[1]+1)<<3, ptr);
+ put_cmsg(msg, SOL_IPV6, IPV6_2292DSTOPTS, (ptr[1]+1)<<3, ptr);
}
return 0;
}
int datagram_send_ctl(struct msghdr *msg, struct flowi *fl,
struct ipv6_txoptions *opt,
- int *hlimit)
+ int *hlimit, int *tclass)
{
struct in6_pktinfo *src_info;
struct cmsghdr *cmsg;
switch (cmsg->cmsg_type) {
case IPV6_PKTINFO:
+ case IPV6_2292PKTINFO:
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct in6_pktinfo))) {
err = -EINVAL;
goto exit_f;
fl->fl6_flowlabel = IPV6_FLOWINFO_MASK & *(u32 *)CMSG_DATA(cmsg);
break;
+ case IPV6_2292HOPOPTS:
case IPV6_HOPOPTS:
if (opt->hopopt || cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_hdr))) {
err = -EINVAL;
opt->hopopt = hdr;
break;
- case IPV6_DSTOPTS:
+ case IPV6_2292DSTOPTS:
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_hdr))) {
err = -EINVAL;
goto exit_f;
opt->dst1opt = hdr;
break;
+ case IPV6_DSTOPTS:
+ case IPV6_RTHDRDSTOPTS:
+ if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_opt_hdr))) {
+ err = -EINVAL;
+ goto exit_f;
+ }
+
+ hdr = (struct ipv6_opt_hdr *)CMSG_DATA(cmsg);
+ len = ((hdr->hdrlen + 1) << 3);
+ if (cmsg->cmsg_len < CMSG_LEN(len)) {
+ err = -EINVAL;
+ goto exit_f;
+ }
+ if (!capable(CAP_NET_RAW)) {
+ err = -EPERM;
+ goto exit_f;
+ }
+ if (cmsg->cmsg_type == IPV6_DSTOPTS) {
+ opt->opt_flen += len;
+ opt->dst1opt = hdr;
+ } else {
+ opt->opt_nflen += len;
+ opt->dst0opt = hdr;
+ }
+ break;
+
+ case IPV6_2292RTHDR:
case IPV6_RTHDR:
if (cmsg->cmsg_len < CMSG_LEN(sizeof(struct ipv6_rt_hdr))) {
err = -EINVAL;
rthdr = (struct ipv6_rt_hdr *)CMSG_DATA(cmsg);
- /*
- * TYPE 0
- */
- if (rthdr->type) {
+ switch (rthdr->type) {
+ case IPV6_SRCRT_TYPE_0:
+#ifdef CONFIG_IPV6_MIP6
+ case IPV6_SRCRT_TYPE_2:
+#endif
+ break;
+ default:
err = -EINVAL;
goto exit_f;
}
opt->opt_nflen += len;
opt->srcrt = rthdr;
- if (opt->dst1opt) {
+ if (cmsg->cmsg_type == IPV6_2292RTHDR && opt->dst1opt) {
int dsthdrlen = ((opt->dst1opt->hdrlen+1)<<3);
opt->opt_nflen += dsthdrlen;
break;
+ case IPV6_2292HOPLIMIT:
case IPV6_HOPLIMIT:
if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) {
err = -EINVAL;
*hlimit = *(int *)CMSG_DATA(cmsg);
break;
+ case IPV6_TCLASS:
+ {
+ int tc;
+
+ err = -EINVAL;
+ if (cmsg->cmsg_len != CMSG_LEN(sizeof(int))) {
+ goto exit_f;
+ }
+
+ tc = *(int *)CMSG_DATA(cmsg);
+ if (tc < -1 || tc > 0xff)
+ goto exit_f;
+
+ err = 0;
+ *tclass = tc;
+
+ break;
+ }
default:
LIMIT_NETDEBUG(KERN_DEBUG "invalid cmsg type: %d\n",
cmsg->cmsg_type);
projects / linux-2.6-omap-h63xx.git / blobdiff