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-rw-r--r--include/net/ipv6.h2
-rw-r--r--net/ipv6/datagram.c2
-rw-r--r--net/ipv6/exthdrs.c22
-rw-r--r--net/ipv6/ip6_flowlabel.c16
-rw-r--r--net/ipv6/raw.c4
-rw-r--r--net/ipv6/udp.c4
6 files changed, 36 insertions, 14 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 6addb4d464d6..0a2ad51cff82 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -237,6 +237,8 @@ extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_t
int newtype,
struct ipv6_opt_hdr __user *newopt,
int newoptlen);
+struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
+ struct ipv6_txoptions *opt);
extern int ip6_frag_nqueues;
extern atomic_t ip6_frag_mem;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index cc518405b3e1..c4a3a993acb7 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -437,7 +437,7 @@ int datagram_recv_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb)
break;
case IPPROTO_AH:
nexthdr = ptr[0];
- len = (ptr[1] + 1) << 2;
+ len = (ptr[1] + 2) << 2;
break;
default:
nexthdr = ptr[0];
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 922549581abc..be6faf311387 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -628,6 +628,7 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
if (!tot_len)
return NULL;
+ tot_len += sizeof(*opt2);
opt2 = sock_kmalloc(sk, tot_len, GFP_ATOMIC);
if (!opt2)
return ERR_PTR(-ENOBUFS);
@@ -668,7 +669,26 @@ ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
return opt2;
out:
- sock_kfree_s(sk, p, tot_len);
+ sock_kfree_s(sk, opt2, opt2->tot_len);
return ERR_PTR(err);
}
+struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
+ struct ipv6_txoptions *opt)
+{
+ /*
+ * ignore the dest before srcrt unless srcrt is being included.
+ * --yoshfuji
+ */
+ if (opt && opt->dst0opt && !opt->srcrt) {
+ if (opt_space != opt) {
+ memcpy(opt_space, opt, sizeof(*opt_space));
+ opt = opt_space;
+ }
+ opt->opt_nflen -= ipv6_optlen(opt->dst0opt);
+ opt->dst0opt = NULL;
+ }
+
+ return opt;
+}
+
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index bbbe80cdaf72..1cf02765fb5c 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -225,20 +225,16 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
struct ip6_flowlabel * fl,
struct ipv6_txoptions * fopt)
{
- struct ipv6_txoptions * fl_opt = fl ? fl->opt : NULL;
-
- if (fopt == NULL || fopt->opt_flen == 0) {
- if (!fl_opt || !fl_opt->dst0opt || fl_opt->srcrt)
- return fl_opt;
- }
-
+ struct ipv6_txoptions * fl_opt = fl->opt;
+
+ if (fopt == NULL || fopt->opt_flen == 0)
+ return fl_opt;
+
if (fl_opt != NULL) {
opt_space->hopopt = fl_opt->hopopt;
- opt_space->dst0opt = fl_opt->srcrt ? fl_opt->dst0opt : NULL;
+ opt_space->dst0opt = fl_opt->dst0opt;
opt_space->srcrt = fl_opt->srcrt;
opt_space->opt_nflen = fl_opt->opt_nflen;
- if (fl_opt->dst0opt && !fl_opt->srcrt)
- opt_space->opt_nflen -= ipv6_optlen(fl_opt->dst0opt);
} else {
if (fopt->opt_nflen == 0)
return fopt;
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 8e9628f1c4c5..a66900cda2af 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -748,7 +748,9 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
}
if (opt == NULL)
opt = np->opt;
- opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ if (flowlabel)
+ opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ opt = ipv6_fixup_options(&opt_space, opt);
fl.proto = proto;
rawv6_probe_proto_opt(&fl, msg);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index e671153b47b2..5cc8731eb55b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -771,7 +771,9 @@ do_udp_sendmsg:
}
if (opt == NULL)
opt = np->opt;
- opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ if (flowlabel)
+ opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ opt = ipv6_fixup_options(&opt_space, opt);
fl->proto = IPPROTO_UDP;
ipv6_addr_copy(&fl->fl6_dst, daddr);