diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 415213da5be3..11a045281948 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -251,6 +251,13 @@ struct ipv6_fl_socklist { struct rcu_head rcu; }; +struct ipcm6_cookie { + __s16 hlimit; + __s16 tclass; + __s8 dontfrag; + struct ipv6_txoptions *opt; +}; + static inline struct ipv6_txoptions *txopt_get(const struct ipv6_pinfo *np) { struct ipv6_txoptions *opt; @@ -863,9 +870,9 @@ int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr); int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), - void *from, int length, int transhdrlen, int hlimit, - int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6, - struct rt6_info *rt, unsigned int flags, int dontfrag, + void *from, int length, int transhdrlen, + struct ipcm6_cookie *ipc6, struct flowi6 *fl6, + struct rt6_info *rt, unsigned int flags, const struct sockcm_cookie *sockc); int ip6_push_pending_frames(struct sock *sk); @@ -881,9 +888,8 @@ struct sk_buff *ip6_make_skb(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int length, int transhdrlen, - int hlimit, int tclass, struct ipv6_txoptions *opt, - struct flowi6 *fl6, struct rt6_info *rt, - unsigned int flags, int dontfrag, + struct ipcm6_cookie *ipc6, struct flowi6 *fl6, + struct rt6_info *rt, unsigned int flags, const struct sockcm_cookie *sockc); static inline struct sk_buff *ip6_finish_skb(struct sock *sk) diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h index 2b1c3450ab20..276f9760ab56 100644 --- a/include/net/transp_v6.h +++ b/include/net/transp_v6.h @@ -41,8 +41,7 @@ void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg, struct sk_buff *skb); int ip6_datagram_send_ctl(struct net *net, struct sock *sk, struct msghdr *msg, - struct flowi6 *fl6, struct ipv6_txoptions *opt, - int *hlimit, int *tclass, int *dontfrag, + struct flowi6 *fl6, struct ipcm6_cookie *ipc6, struct sockcm_cookie *sockc); void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp, diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c index ea9ee5cce5cf..00d0c2903173 100644 --- a/net/ipv6/datagram.c +++ b/net/ipv6/datagram.c @@ -727,14 +727,13 @@ EXPORT_SYMBOL_GPL(ip6_datagram_recv_ctl); int ip6_datagram_send_ctl(struct net *net, struct sock *sk, struct msghdr *msg, struct flowi6 *fl6, - struct ipv6_txoptions *opt, - int *hlimit, int *tclass, int *dontfrag, - struct sockcm_cookie *sockc) + struct ipcm6_cookie *ipc6, struct sockcm_cookie *sockc) { struct in6_pktinfo *src_info; struct cmsghdr *cmsg; struct ipv6_rt_hdr *rthdr; struct ipv6_opt_hdr *hdr; + struct ipv6_txoptions *opt = ipc6->opt; int len; int err = 0; @@ -953,8 +952,8 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, goto exit_f; } - *hlimit = *(int *)CMSG_DATA(cmsg); - if (*hlimit < -1 || *hlimit > 0xff) { + ipc6->hlimit = *(int *)CMSG_DATA(cmsg); + if (ipc6->hlimit < -1 || ipc6->hlimit > 0xff) { err = -EINVAL; goto exit_f; } @@ -974,7 +973,7 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, goto exit_f; err = 0; - *tclass = tc; + ipc6->tclass = tc; break; } @@ -992,7 +991,7 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, goto exit_f; err = 0; - *dontfrag = df; + ipc6->dontfrag = df; break; } diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 23b9a4cc418e..9554b99a8508 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -401,10 +401,10 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) struct flowi6 fl6; struct icmpv6_msg msg; struct sockcm_cookie sockc_unused = {0}; + struct ipcm6_cookie ipc6; int iif = 0; int addr_type = 0; int len; - int hlimit; int err = 0; u32 mark = IP6_REPLY_MARK(net, skb->mark); @@ -507,7 +507,10 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) if (IS_ERR(dst)) goto out; - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + ipc6.tclass = np->tclass; + ipc6.dontfrag = np->dontfrag; + ipc6.opt = NULL; msg.skb = skb; msg.offset = skb_network_offset(skb); @@ -526,9 +529,9 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info) err = ip6_append_data(sk, icmpv6_getfrag, &msg, len + sizeof(struct icmp6hdr), - sizeof(struct icmp6hdr), hlimit, - np->tclass, NULL, &fl6, (struct rt6_info *)dst, - MSG_DONTWAIT, np->dontfrag, &sockc_unused); + sizeof(struct icmp6hdr), + &ipc6, &fl6, (struct rt6_info *)dst, + MSG_DONTWAIT, &sockc_unused); if (err) { ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTERRORS); ip6_flush_pending_frames(sk); @@ -563,9 +566,8 @@ static void icmpv6_echo_reply(struct sk_buff *skb) struct flowi6 fl6; struct icmpv6_msg msg; struct dst_entry *dst; + struct ipcm6_cookie ipc6; int err = 0; - int hlimit; - u8 tclass; u32 mark = IP6_REPLY_MARK(net, skb->mark); struct sockcm_cookie sockc_unused = {0}; @@ -607,19 +609,21 @@ static void icmpv6_echo_reply(struct sk_buff *skb) if (IS_ERR(dst)) goto out; - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); - idev = __in6_dev_get(skb->dev); msg.skb = skb; msg.offset = 0; msg.type = ICMPV6_ECHO_REPLY; - tclass = ipv6_get_dsfield(ipv6_hdr(skb)); + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + ipc6.tclass = ipv6_get_dsfield(ipv6_hdr(skb)); + ipc6.dontfrag = np->dontfrag; + ipc6.opt = NULL; + err = ip6_append_data(sk, icmpv6_getfrag, &msg, skb->len + sizeof(struct icmp6hdr), - sizeof(struct icmp6hdr), hlimit, tclass, NULL, &fl6, + sizeof(struct icmp6hdr), &ipc6, &fl6, (struct rt6_info *)dst, MSG_DONTWAIT, - np->dontfrag, &sockc_unused); + &sockc_unused); if (err) { __ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTERRORS); diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c index 35d3ddc328f8..b912f0dbaf72 100644 --- a/net/ipv6/ip6_flowlabel.c +++ b/net/ipv6/ip6_flowlabel.c @@ -373,7 +373,7 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq, struct msghdr msg; struct flowi6 flowi6; struct sockcm_cookie sockc_junk; - int junk; + struct ipcm6_cookie ipc6; err = -ENOMEM; fl->opt = kmalloc(sizeof(*fl->opt) + olen, GFP_KERNEL); @@ -390,8 +390,8 @@ fl_create(struct net *net, struct sock *sk, struct in6_flowlabel_req *freq, msg.msg_control = (void *)(fl->opt+1); memset(&flowi6, 0, sizeof(flowi6)); - err = ip6_datagram_send_ctl(net, sk, &msg, &flowi6, fl->opt, - &junk, &junk, &junk, &sockc_junk); + ipc6.opt = fl->opt; + err = ip6_datagram_send_ctl(net, sk, &msg, &flowi6, &ipc6, &sockc_junk); if (err) goto done; err = -EINVAL; diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 2b3ffc582d16..cbf127ae7c67 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1182,12 +1182,12 @@ static void ip6_append_data_mtu(unsigned int *mtu, } static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork, - struct inet6_cork *v6_cork, - int hlimit, int tclass, struct ipv6_txoptions *opt, + struct inet6_cork *v6_cork, struct ipcm6_cookie *ipc6, struct rt6_info *rt, struct flowi6 *fl6) { struct ipv6_pinfo *np = inet6_sk(sk); unsigned int mtu; + struct ipv6_txoptions *opt = ipc6->opt; /* * setup for corking @@ -1229,8 +1229,8 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork, dst_hold(&rt->dst); cork->base.dst = &rt->dst; cork->fl.u.ip6 = *fl6; - v6_cork->hop_limit = hlimit; - v6_cork->tclass = tclass; + v6_cork->hop_limit = ipc6->hlimit; + v6_cork->tclass = ipc6->tclass; if (rt->dst.flags & DST_XFRM_TUNNEL) mtu = np->pmtudisc >= IPV6_PMTUDISC_PROBE ? rt->dst.dev->mtu : dst_mtu(&rt->dst); @@ -1258,7 +1258,7 @@ static int __ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int length, int transhdrlen, - unsigned int flags, int dontfrag, + unsigned int flags, struct ipcm6_cookie *ipc6, const struct sockcm_cookie *sockc) { struct sk_buff *skb, *skb_prev = NULL; @@ -1298,7 +1298,7 @@ static int __ip6_append_data(struct sock *sk, sizeof(struct frag_hdr) : 0) + rt->rt6i_nfheader_len; - if (cork->length + length > mtu - headersize && dontfrag && + if (cork->length + length > mtu - headersize && ipc6->dontfrag && (sk->sk_protocol == IPPROTO_UDP || sk->sk_protocol == IPPROTO_RAW)) { ipv6_local_rxpmtu(sk, fl6, mtu - headersize + @@ -1564,9 +1564,9 @@ static int __ip6_append_data(struct sock *sk, int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), - void *from, int length, int transhdrlen, int hlimit, - int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6, - struct rt6_info *rt, unsigned int flags, int dontfrag, + void *from, int length, int transhdrlen, + struct ipcm6_cookie *ipc6, struct flowi6 *fl6, + struct rt6_info *rt, unsigned int flags, const struct sockcm_cookie *sockc) { struct inet_sock *inet = inet_sk(sk); @@ -1580,12 +1580,12 @@ int ip6_append_data(struct sock *sk, /* * setup for corking */ - err = ip6_setup_cork(sk, &inet->cork, &np->cork, hlimit, - tclass, opt, rt, fl6); + err = ip6_setup_cork(sk, &inet->cork, &np->cork, + ipc6, rt, fl6); if (err) return err; - exthdrlen = (opt ? opt->opt_flen : 0); + exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0); length += exthdrlen; transhdrlen += exthdrlen; } else { @@ -1595,8 +1595,7 @@ int ip6_append_data(struct sock *sk, return __ip6_append_data(sk, fl6, &sk->sk_write_queue, &inet->cork.base, &np->cork, sk_page_frag(sk), getfrag, - from, length, transhdrlen, flags, dontfrag, - sockc); + from, length, transhdrlen, flags, ipc6, sockc); } EXPORT_SYMBOL_GPL(ip6_append_data); @@ -1752,15 +1751,14 @@ struct sk_buff *ip6_make_skb(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int length, int transhdrlen, - int hlimit, int tclass, - struct ipv6_txoptions *opt, struct flowi6 *fl6, + struct ipcm6_cookie *ipc6, struct flowi6 *fl6, struct rt6_info *rt, unsigned int flags, - int dontfrag, const struct sockcm_cookie *sockc) + const struct sockcm_cookie *sockc) { struct inet_cork_full cork; struct inet6_cork v6_cork; struct sk_buff_head queue; - int exthdrlen = (opt ? opt->opt_flen : 0); + int exthdrlen = (ipc6->opt ? ipc6->opt->opt_flen : 0); int err; if (flags & MSG_PROBE) @@ -1772,17 +1770,17 @@ struct sk_buff *ip6_make_skb(struct sock *sk, cork.base.addr = 0; cork.base.opt = NULL; v6_cork.opt = NULL; - err = ip6_setup_cork(sk, &cork, &v6_cork, hlimit, tclass, opt, rt, fl6); + err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6); if (err) return ERR_PTR(err); - if (dontfrag < 0) - dontfrag = inet6_sk(sk)->dontfrag; + if (ipc6->dontfrag < 0) + ipc6->dontfrag = inet6_sk(sk)->dontfrag; err = __ip6_append_data(sk, fl6, &queue, &cork.base, &v6_cork, ¤t->task_frag, getfrag, from, length + exthdrlen, transhdrlen + exthdrlen, - flags, dontfrag, sockc); + flags, ipc6, sockc); if (err) { __ip6_flush_pending_frames(sk, &queue, &cork, &v6_cork); return ERR_PTR(err); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 4ff4b29894eb..a9895e15ee9c 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -473,7 +473,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, struct msghdr msg; struct flowi6 fl6; struct sockcm_cookie sockc_junk; - int junk; + struct ipcm6_cookie ipc6; memset(&fl6, 0, sizeof(fl6)); fl6.flowi6_oif = sk->sk_bound_dev_if; @@ -503,9 +503,9 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, msg.msg_controllen = optlen; msg.msg_control = (void *)(opt+1); + ipc6.opt = opt; - retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, opt, &junk, - &junk, &junk, &sockc_junk); + retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, &ipc6, &sockc_junk); if (retv) goto done; update: diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c index da1cff79e447..3ee3e444a66b 100644 --- a/net/ipv6/ping.c +++ b/net/ipv6/ping.c @@ -58,11 +58,11 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) int iif = 0; struct flowi6 fl6; int err; - int hlimit; struct dst_entry *dst; struct rt6_info *rt; struct pingfakehdr pfh; struct sockcm_cookie junk = {0}; + struct ipcm6_cookie ipc6; pr_debug("ping_v6_sendmsg(sk=%p,sk->num=%u)\n", inet, inet->inet_num); @@ -139,13 +139,15 @@ static int ping_v6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) pfh.wcheck = 0; pfh.family = AF_INET6; - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + ipc6.tclass = np->tclass; + ipc6.dontfrag = np->dontfrag; + ipc6.opt = NULL; lock_sock(sk); err = ip6_append_data(sk, ping_getfrag, &pfh, len, - 0, hlimit, - np->tclass, NULL, &fl6, rt, - MSG_DONTWAIT, np->dontfrag, &junk); + 0, &ipc6, &fl6, rt, + MSG_DONTWAIT, &junk); if (err) { ICMP6_INC_STATS(sock_net(sk), rt->rt6i_idev, diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index b07ce21983aa..896350df6423 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -746,10 +746,8 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) struct raw6_frag_vec rfv; struct flowi6 fl6; struct sockcm_cookie sockc; + struct ipcm6_cookie ipc6; int addr_len = msg->msg_namelen; - int hlimit = -1; - int tclass = -1; - int dontfrag = -1; u16 proto; int err; @@ -770,6 +768,11 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) fl6.flowi6_mark = sk->sk_mark; + ipc6.hlimit = -1; + ipc6.tclass = -1; + ipc6.dontfrag = -1; + ipc6.opt = NULL; + if (sin6) { if (addr_len < SIN6_LEN_RFC2133) return -EINVAL; @@ -827,10 +830,9 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) opt = &opt_space; memset(opt, 0, sizeof(struct ipv6_txoptions)); opt->tot_len = sizeof(struct ipv6_txoptions); + ipc6.opt = opt; - err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt, - &hlimit, &tclass, &dontfrag, - &sockc); + err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, &ipc6, &sockc); if (err < 0) { fl6_sock_release(flowlabel); return err; @@ -846,7 +848,7 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (!opt) { opt = txopt_get(np); opt_to_free = opt; - } + } if (flowlabel) opt = fl6_merge_options(&opt_space, flowlabel, opt); opt = ipv6_fixup_options(&opt_space, opt); @@ -881,14 +883,14 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) err = PTR_ERR(dst); goto out; } - if (hlimit < 0) - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + if (ipc6.hlimit < 0) + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); - if (tclass < 0) - tclass = np->tclass; + if (ipc6.tclass < 0) + ipc6.tclass = np->tclass; - if (dontfrag < 0) - dontfrag = np->dontfrag; + if (ipc6.dontfrag < 0) + ipc6.dontfrag = np->dontfrag; if (msg->msg_flags&MSG_CONFIRM) goto do_confirm; @@ -897,10 +899,11 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (inet->hdrincl) err = rawv6_send_hdrinc(sk, msg, len, &fl6, &dst, msg->msg_flags); else { + ipc6.opt = opt; lock_sock(sk); err = ip6_append_data(sk, raw6_getfrag, &rfv, - len, 0, hlimit, tclass, opt, &fl6, (struct rt6_info *)dst, - msg->msg_flags, dontfrag, &sockc); + len, 0, &ipc6, &fl6, (struct rt6_info *)dst, + msg->msg_flags, &sockc); if (err) ip6_flush_pending_frames(sk); diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index f911c63f79e6..aca06094110f 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1064,11 +1064,9 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) struct ip6_flowlabel *flowlabel = NULL; struct flowi6 fl6; struct dst_entry *dst; + struct ipcm6_cookie ipc6; int addr_len = msg->msg_namelen; int ulen = len; - int hlimit = -1; - int tclass = -1; - int dontfrag = -1; int corkreq = up->corkflag || msg->msg_flags&MSG_MORE; int err; int connected = 0; @@ -1076,6 +1074,10 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) int (*getfrag)(void *, char *, int, int, int, struct sk_buff *); struct sockcm_cookie sockc; + ipc6.hlimit = -1; + ipc6.tclass = -1; + ipc6.dontfrag = -1; + /* destination address check */ if (sin6) { if (addr_len < offsetof(struct sockaddr, sa_data)) @@ -1200,10 +1202,9 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) opt = &opt_space; memset(opt, 0, sizeof(struct ipv6_txoptions)); opt->tot_len = sizeof(*opt); + ipc6.opt = opt; - err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt, - &hlimit, &tclass, &dontfrag, - &sockc); + err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, &ipc6, &sockc); if (err < 0) { fl6_sock_release(flowlabel); return err; @@ -1224,6 +1225,7 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (flowlabel) opt = fl6_merge_options(&opt_space, flowlabel, opt); opt = ipv6_fixup_options(&opt_space, opt); + ipc6.opt = opt; fl6.flowi6_proto = sk->sk_protocol; if (!ipv6_addr_any(daddr)) @@ -1253,11 +1255,11 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) goto out; } - if (hlimit < 0) - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + if (ipc6.hlimit < 0) + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); - if (tclass < 0) - tclass = np->tclass; + if (ipc6.tclass < 0) + ipc6.tclass = np->tclass; if (msg->msg_flags&MSG_CONFIRM) goto do_confirm; @@ -1268,9 +1270,9 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) struct sk_buff *skb; skb = ip6_make_skb(sk, getfrag, msg, ulen, - sizeof(struct udphdr), hlimit, tclass, opt, + sizeof(struct udphdr), &ipc6, &fl6, (struct rt6_info *)dst, - msg->msg_flags, dontfrag, &sockc); + msg->msg_flags, &sockc); err = PTR_ERR(skb); if (!IS_ERR_OR_NULL(skb)) err = udp_v6_send_skb(skb, &fl6); @@ -1291,14 +1293,12 @@ int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) up->pending = AF_INET6; do_append_data: - if (dontfrag < 0) - dontfrag = np->dontfrag; + if (ipc6.dontfrag < 0) + ipc6.dontfrag = np->dontfrag; up->len += ulen; - err = ip6_append_data(sk, getfrag, msg, ulen, - sizeof(struct udphdr), hlimit, tclass, opt, &fl6, - (struct rt6_info *)dst, - corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags, dontfrag, - &sockc); + err = ip6_append_data(sk, getfrag, msg, ulen, sizeof(struct udphdr), + &ipc6, &fl6, (struct rt6_info *)dst, + corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags, &sockc); if (err) udp_v6_flush_pending_frames(sk); else if (!corkreq) diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 46e07267e503..c6f5df1bed12 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -495,10 +495,8 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) struct dst_entry *dst = NULL; struct flowi6 fl6; struct sockcm_cookie sockc_unused = {0}; + struct ipcm6_cookie ipc6; int addr_len = msg->msg_namelen; - int hlimit = -1; - int tclass = -1; - int dontfrag = -1; int transhdrlen = 4; /* zero session-id */ int ulen = len + transhdrlen; int err; @@ -520,6 +518,10 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) fl6.flowi6_mark = sk->sk_mark; + ipc6.hlimit = -1; + ipc6.tclass = -1; + ipc6.dontfrag = -1; + if (lsa) { if (addr_len < SIN6_LEN_RFC2133) return -EINVAL; @@ -564,11 +566,11 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) opt = &opt_space; memset(opt, 0, sizeof(struct ipv6_txoptions)); opt->tot_len = sizeof(struct ipv6_txoptions); + ipc6.opt = opt; - err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, opt, - &hlimit, &tclass, &dontfrag, - &sockc_unused); - if (err < 0) { + err = ip6_datagram_send_ctl(sock_net(sk), sk, msg, &fl6, &ipc6, + &sockc_unused); + if (err < 0) { fl6_sock_release(flowlabel); return err; } @@ -588,6 +590,7 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) if (flowlabel) opt = fl6_merge_options(&opt_space, flowlabel, opt); opt = ipv6_fixup_options(&opt_space, opt); + ipc6.opt = opt; fl6.flowi6_proto = sk->sk_protocol; if (!ipv6_addr_any(daddr)) @@ -612,14 +615,14 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) goto out; } - if (hlimit < 0) - hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); + if (ipc6.hlimit < 0) + ipc6.hlimit = ip6_sk_dst_hoplimit(np, &fl6, dst); - if (tclass < 0) - tclass = np->tclass; + if (ipc6.tclass < 0) + ipc6.tclass = np->tclass; - if (dontfrag < 0) - dontfrag = np->dontfrag; + if (ipc6.dontfrag < 0) + ipc6.dontfrag = np->dontfrag; if (msg->msg_flags & MSG_CONFIRM) goto do_confirm; @@ -627,9 +630,9 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) back_from_confirm: lock_sock(sk); err = ip6_append_data(sk, ip_generic_getfrag, msg, - ulen, transhdrlen, hlimit, tclass, opt, + ulen, transhdrlen, &ipc6, &fl6, (struct rt6_info *)dst, - msg->msg_flags, dontfrag, &sockc_unused); + msg->msg_flags, &sockc_unused); if (err) ip6_flush_pending_frames(sk); else if (!(msg->msg_flags & MSG_MORE))