* [PATCH net-next v5 0/3] ipv6: tcp_ipv6 policy route issue
@ 2014-03-28 9:20 Wangyufen
2014-03-28 9:20 ` [PATCH net-next v5 1/3] ipv6: tcp_ipv6 do some cleanup Wangyufen
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Wangyufen @ 2014-03-28 9:20 UTC (permalink / raw)
To: davem, netdev; +Cc: kuznet, Wang Yufen
From: Wang Yufen <wangyufen@huawei.com>
Wang Yufen (3):
ipv6: tcp_ipv6 do some cleanup
ipv6: reuse rt6_need_strict
ipv6: tcp_ipv6 policy route issue
v4: use rt6_need_strict to check whether the oif directly
assigned to iif
v5: Move the whole rt6_need_strict as static inline into
ip6_route.h, instade of just delete static.
include/net/ip6_route.h | 5 +++++
net/ipv6/route.c | 6 ------
net/ipv6/ip6_fib.c | 42 +++---
3 file changed, 27 insertions(+), 26 deletions(-)
--
1.7.12
^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH net-next v5 1/3] ipv6: tcp_ipv6 do some cleanup 2014-03-28 9:20 [PATCH net-next v5 0/3] ipv6: tcp_ipv6 policy route issue Wangyufen @ 2014-03-28 9:20 ` Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 3/3] ipv6: tcp_ipv6 policy route issue Wangyufen 2 siblings, 0 replies; 6+ messages in thread From: Wangyufen @ 2014-03-28 9:20 UTC (permalink / raw) To: davem, netdev; +Cc: kuznet, Wang Yufen From: Wang Yufen <wangyufen@huawei.com> Signed-off-by: Wang Yufen <wangyufen@huawei.com> --- net/ipv6/tcp_ipv6.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3277680..10b7c04 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -39,7 +39,7 @@ #include <linux/ipsec.h> #include <linux/times.h> #include <linux/slab.h> - +#include <linux/uaccess.h> #include <linux/ipv6.h> #include <linux/icmpv6.h> #include <linux/random.h> @@ -65,8 +65,6 @@ #include <net/tcp_memcontrol.h> #include <net/busy_poll.h> -#include <asm/uaccess.h> - #include <linux/proc_fs.h> #include <linux/seq_file.h> @@ -532,8 +530,8 @@ static struct tcp_md5sig_key *tcp_v6_reqsk_md5_lookup(struct sock *sk, return tcp_v6_md5_do_lookup(sk, &inet_rsk(req)->ir_v6_rmt_addr); } -static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval, - int optlen) +static int tcp_v6_parse_md5_keys(struct sock *sk, char __user *optval, + int optlen) { struct tcp_md5sig cmd; struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&cmd.tcpm_addr; @@ -717,7 +715,7 @@ struct request_sock_ops tcp6_request_sock_ops __read_mostly = { .send_ack = tcp_v6_reqsk_send_ack, .destructor = tcp_v6_reqsk_destructor, .send_reset = tcp_v6_send_reset, - .syn_ack_timeout = tcp_syn_ack_timeout, + .syn_ack_timeout = tcp_syn_ack_timeout, }; #ifdef CONFIG_TCP_MD5SIG @@ -1261,7 +1259,8 @@ static struct sock *tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb, #ifdef CONFIG_TCP_MD5SIG /* Copy over the MD5 key from the original socket */ - if ((key = tcp_v6_md5_do_lookup(sk, &newsk->sk_v6_daddr)) != NULL) { + key = tcp_v6_md5_do_lookup(sk, &newsk->sk_v6_daddr); + if (key != NULL) { /* We're using one, so create a matching key * on the newsk structure. If we fail to get * memory, then we end up not copying the key @@ -1305,9 +1304,8 @@ static __sum16 tcp_v6_checksum_init(struct sk_buff *skb) &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr, 0)); - if (skb->len <= 76) { + if (skb->len <= 76) return __skb_checksum_complete(skb); - } return 0; } @@ -1337,7 +1335,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb) return tcp_v4_do_rcv(sk, skb); #ifdef CONFIG_TCP_MD5SIG - if (tcp_v6_inbound_md5_hash (sk, skb)) + if (tcp_v6_inbound_md5_hash(sk, skb)) goto discard; #endif @@ -1604,7 +1602,8 @@ do_time_wait: break; case TCP_TW_RST: goto no_tcp_socket; - case TCP_TW_SUCCESS:; + case TCP_TW_SUCCESS: + ; } goto discard_it; } @@ -1649,7 +1648,7 @@ static void tcp_v6_early_demux(struct sk_buff *skb) static struct timewait_sock_ops tcp6_timewait_sock_ops = { .twsk_obj_size = sizeof(struct tcp6_timewait_sock), .twsk_unique = tcp_twsk_unique, - .twsk_destructor= tcp_twsk_destructor, + .twsk_destructor = tcp_twsk_destructor, }; static const struct inet_connection_sock_af_ops ipv6_specific = { @@ -1683,7 +1682,6 @@ static const struct tcp_sock_af_ops tcp_sock_ipv6_specific = { /* * TCP over IPv4 via INET6 API */ - static const struct inet_connection_sock_af_ops ipv6_mapped = { .queue_xmit = ip_queue_xmit, .send_check = tcp_v4_send_check, -- 1.7.12 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict 2014-03-28 9:20 [PATCH net-next v5 0/3] ipv6: tcp_ipv6 policy route issue Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 1/3] ipv6: tcp_ipv6 do some cleanup Wangyufen @ 2014-03-28 9:20 ` Wangyufen 2014-03-28 13:40 ` Sergei Shtylyov 2014-03-28 9:20 ` [PATCH net-next v5 3/3] ipv6: tcp_ipv6 policy route issue Wangyufen 2 siblings, 1 reply; 6+ messages in thread From: Wangyufen @ 2014-03-28 9:20 UTC (permalink / raw) To: davem, netdev; +Cc: kuznet, Wang Yufen From: Wang Yufen <wangyufen@huawei.com> Move the whole rt6_need_strict as static inline into ip6_route.h, so that it can be reused Signed-off-by: Wang Yufen <wangyufen@huawei.com> --- include/net/ip6_route.h | 5 +++++ net/ipv6/route.c | 6 ------ 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 00e3f12..33e8694 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -51,6 +51,11 @@ static inline unsigned int rt6_flags2srcprefs(int flags) return (flags >> 3) & 7; } +static inline bool rt6_need_strict(const struct in6_addr *daddr) +{ + return ipv6_addr_type(daddr) & + IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); +} void ip6_route_input(struct sk_buff *skb); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index b93ae6a..5015c50 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -374,12 +374,6 @@ static bool rt6_check_expired(const struct rt6_info *rt) return false; } -static bool rt6_need_strict(const struct in6_addr *daddr) -{ - return ipv6_addr_type(daddr) & - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); -} - /* Multipath route selection: * Hash based function using packet header and flowlabel. * Adapted from fib_info_hashfn() -- 1.7.12 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict 2014-03-28 9:20 ` [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict Wangyufen @ 2014-03-28 13:40 ` Sergei Shtylyov 2014-03-29 1:25 ` wangyufen 0 siblings, 1 reply; 6+ messages in thread From: Sergei Shtylyov @ 2014-03-28 13:40 UTC (permalink / raw) To: Wangyufen, davem, netdev; +Cc: kuznet Hello. On 28-03-2014 13:20, Wangyufen wrote: > From: Wang Yufen <wangyufen@huawei.com> > Move the whole rt6_need_strict as static inline into ip6_route.h, > so that it can be reused > Signed-off-by: Wang Yufen <wangyufen@huawei.com> > --- > include/net/ip6_route.h | 5 +++++ > net/ipv6/route.c | 6 ------ > 2 files changed, 5 insertions(+), 6 deletions(-) > diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h > index 00e3f12..33e8694 100644 > --- a/include/net/ip6_route.h > +++ b/include/net/ip6_route.h > @@ -51,6 +51,11 @@ static inline unsigned int rt6_flags2srcprefs(int flags) > return (flags >> 3) & 7; > } > > +static inline bool rt6_need_strict(const struct in6_addr *daddr) > +{ > + return ipv6_addr_type(daddr) & > + IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); I don't think removing parens was correct here: & should have more priority than |. > +} > > void ip6_route_input(struct sk_buff *skb); > > diff --git a/net/ipv6/route.c b/net/ipv6/route.c > index b93ae6a..5015c50 100644 > --- a/net/ipv6/route.c > +++ b/net/ipv6/route.c > @@ -374,12 +374,6 @@ static bool rt6_check_expired(const struct rt6_info *rt) > return false; > } > > -static bool rt6_need_strict(const struct in6_addr *daddr) > -{ > - return ipv6_addr_type(daddr) & > - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); > -} > - > /* Multipath route selection: > * Hash based function using packet header and flowlabel. > * Adapted from fib_info_hashfn() WBR, Sergei ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict 2014-03-28 13:40 ` Sergei Shtylyov @ 2014-03-29 1:25 ` wangyufen 0 siblings, 0 replies; 6+ messages in thread From: wangyufen @ 2014-03-29 1:25 UTC (permalink / raw) To: Sergei Shtylyov; +Cc: davem, netdev, kuznet On 2014/3/28 21:40, Sergei Shtylyov wrote: > Hello. > > On 28-03-2014 13:20, Wangyufen wrote: > >> From: Wang Yufen <wangyufen@huawei.com> > >> Move the whole rt6_need_strict as static inline into ip6_route.h, >> so that it can be reused > >> Signed-off-by: Wang Yufen <wangyufen@huawei.com> >> --- >> include/net/ip6_route.h | 5 +++++ >> net/ipv6/route.c | 6 ------ >> 2 files changed, 5 insertions(+), 6 deletions(-) > >> diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h >> index 00e3f12..33e8694 100644 >> --- a/include/net/ip6_route.h >> +++ b/include/net/ip6_route.h >> @@ -51,6 +51,11 @@ static inline unsigned int rt6_flags2srcprefs(int flags) >> return (flags >> 3) & 7; >> } >> >> +static inline bool rt6_need_strict(const struct in6_addr *daddr) >> +{ >> + return ipv6_addr_type(daddr) & >> + IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); > > I don't think removing parens was correct here: & should have more priority than |. Oh, fogive me for my carelessness, there missed a '(' sorry for that, and thanks > >> +} >> >> void ip6_route_input(struct sk_buff *skb); >> >> diff --git a/net/ipv6/route.c b/net/ipv6/route.c >> index b93ae6a..5015c50 100644 >> --- a/net/ipv6/route.c >> +++ b/net/ipv6/route.c >> @@ -374,12 +374,6 @@ static bool rt6_check_expired(const struct rt6_info *rt) >> return false; >> } >> >> -static bool rt6_need_strict(const struct in6_addr *daddr) >> -{ >> - return ipv6_addr_type(daddr) & >> - (IPV6_ADDR_MULTICAST | IPV6_ADDR_LINKLOCAL | IPV6_ADDR_LOOPBACK); >> -} >> - >> /* Multipath route selection: >> * Hash based function using packet header and flowlabel. >> * Adapted from fib_info_hashfn() > > WBR, Sergei > > > ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH net-next v5 3/3] ipv6: tcp_ipv6 policy route issue 2014-03-28 9:20 [PATCH net-next v5 0/3] ipv6: tcp_ipv6 policy route issue Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 1/3] ipv6: tcp_ipv6 do some cleanup Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict Wangyufen @ 2014-03-28 9:20 ` Wangyufen 2 siblings, 0 replies; 6+ messages in thread From: Wangyufen @ 2014-03-28 9:20 UTC (permalink / raw) To: davem, netdev; +Cc: kuznet, Wang Yufen From: Wang Yufen <wangyufen@huawei.com> The issue raises when adding policy route, specify a particular NIC as oif, the policy route did not take effect. The reason is that fl6.oif is not set and route map failed. From the tcp_v6_send_response function, if the binding address is linklocal, fl6.oif is set, but not for global address. Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Wang Yufen <wangyufen@huawei.com> --- net/ipv6/tcp_ipv6.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 10b7c04..5ca56ce 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -726,7 +726,7 @@ static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = { #endif static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win, - u32 tsval, u32 tsecr, + u32 tsval, u32 tsecr, int oif, struct tcp_md5sig_key *key, int rst, u8 tclass, u32 label) { @@ -798,8 +798,10 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win, __tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr); fl6.flowi6_proto = IPPROTO_TCP; - if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL) + if (rt6_need_strict(&fl6.daddr) || !oif) fl6.flowi6_oif = inet6_iif(skb); + else + fl6.flowi6_oif = oif; fl6.fl6_dport = t1->dest; fl6.fl6_sport = t1->source; security_skb_classify_flow(skb, flowi6_to_flowi(&fl6)); @@ -833,6 +835,7 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) int genhash; struct sock *sk1 = NULL; #endif + int oif; if (th->rst) return; @@ -876,7 +879,8 @@ static void tcp_v6_send_reset(struct sock *sk, struct sk_buff *skb) ack_seq = ntohl(th->seq) + th->syn + th->fin + skb->len - (th->doff << 2); - tcp_v6_send_response(skb, seq, ack_seq, 0, 0, 0, key, 1, 0, 0); + oif = sk ? sk->sk_bound_dev_if : 0; + tcp_v6_send_response(skb, seq, ack_seq, 0, 0, 0, oif, key, 1, 0, 0); #ifdef CONFIG_TCP_MD5SIG release_sk1: @@ -888,11 +892,11 @@ release_sk1: } static void tcp_v6_send_ack(struct sk_buff *skb, u32 seq, u32 ack, - u32 win, u32 tsval, u32 tsecr, + u32 win, u32 tsval, u32 tsecr, int oif, struct tcp_md5sig_key *key, u8 tclass, u32 label) { - tcp_v6_send_response(skb, seq, ack, win, tsval, tsecr, key, 0, tclass, + tcp_v6_send_response(skb, seq, ack, win, tsval, tsecr, oif, key, 0, tclass, label); } @@ -904,7 +908,7 @@ static void tcp_v6_timewait_ack(struct sock *sk, struct sk_buff *skb) tcp_v6_send_ack(skb, tcptw->tw_snd_nxt, tcptw->tw_rcv_nxt, tcptw->tw_rcv_wnd >> tw->tw_rcv_wscale, tcp_time_stamp + tcptw->tw_ts_offset, - tcptw->tw_ts_recent, tcp_twsk_md5_key(tcptw), + tcptw->tw_ts_recent, tw->tw_bound_dev_if, tcp_twsk_md5_key(tcptw), tw->tw_tclass, (tw->tw_flowlabel << 12)); inet_twsk_put(tw); @@ -914,7 +918,7 @@ static void tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb, struct request_sock *req) { tcp_v6_send_ack(skb, tcp_rsk(req)->snt_isn + 1, tcp_rsk(req)->rcv_isn + 1, - req->rcv_wnd, tcp_time_stamp, req->ts_recent, + req->rcv_wnd, tcp_time_stamp, req->ts_recent, sk->sk_bound_dev_if, tcp_v6_md5_do_lookup(sk, &ipv6_hdr(skb)->daddr), 0, 0); } -- 1.7.12 ^ permalink raw reply related [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-03-29 1:25 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2014-03-28 9:20 [PATCH net-next v5 0/3] ipv6: tcp_ipv6 policy route issue Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 1/3] ipv6: tcp_ipv6 do some cleanup Wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 2/3] ipv6: reuse rt6_need_strict Wangyufen 2014-03-28 13:40 ` Sergei Shtylyov 2014-03-29 1:25 ` wangyufen 2014-03-28 9:20 ` [PATCH net-next v5 3/3] ipv6: tcp_ipv6 policy route issue Wangyufen
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