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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:40:19 +0000 |
commit | 9f0fc191371843c4fc000a226b0a26b6c059aacd (patch) | |
tree | 35f8be3ef04506ac891ad001e8c41e535ae8d01d /drivers/net/geneve.c | |
parent | Releasing progress-linux version 6.6.15-2~progress7.99u1. (diff) | |
download | linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip |
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/geneve.c')
-rw-r--r-- | drivers/net/geneve.c | 205 |
1 files changed, 72 insertions, 133 deletions
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 78f9d588f7..acd9c615d1 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -784,117 +784,21 @@ free_dst: return err; } -static struct rtable *geneve_get_v4_rt(struct sk_buff *skb, - struct net_device *dev, - struct geneve_sock *gs4, - struct flowi4 *fl4, - const struct ip_tunnel_info *info, - __be16 dport, __be16 sport, - __u8 *full_tos) +static u8 geneve_get_dsfield(struct sk_buff *skb, struct net_device *dev, + const struct ip_tunnel_info *info, + bool *use_cache) { - bool use_cache = ip_tunnel_dst_cache_usable(skb, info); struct geneve_dev *geneve = netdev_priv(dev); - struct dst_cache *dst_cache; - struct rtable *rt = NULL; - __u8 tos; + u8 dsfield; - if (!gs4) - return ERR_PTR(-EIO); - - memset(fl4, 0, sizeof(*fl4)); - fl4->flowi4_mark = skb->mark; - fl4->flowi4_proto = IPPROTO_UDP; - fl4->daddr = info->key.u.ipv4.dst; - fl4->saddr = info->key.u.ipv4.src; - fl4->fl4_dport = dport; - fl4->fl4_sport = sport; - fl4->flowi4_flags = info->key.flow_flags; - - tos = info->key.tos; - if ((tos == 1) && !geneve->cfg.collect_md) { - tos = ip_tunnel_get_dsfield(ip_hdr(skb), skb); - use_cache = false; - } - fl4->flowi4_tos = RT_TOS(tos); - if (full_tos) - *full_tos = tos; - - dst_cache = (struct dst_cache *)&info->dst_cache; - if (use_cache) { - rt = dst_cache_get_ip4(dst_cache, &fl4->saddr); - if (rt) - return rt; - } - rt = ip_route_output_key(geneve->net, fl4); - if (IS_ERR(rt)) { - netdev_dbg(dev, "no route to %pI4\n", &fl4->daddr); - return ERR_PTR(-ENETUNREACH); - } - if (rt->dst.dev == dev) { /* is this necessary? */ - netdev_dbg(dev, "circular route to %pI4\n", &fl4->daddr); - ip_rt_put(rt); - return ERR_PTR(-ELOOP); - } - if (use_cache) - dst_cache_set_ip4(dst_cache, &rt->dst, fl4->saddr); - return rt; -} - -#if IS_ENABLED(CONFIG_IPV6) -static struct dst_entry *geneve_get_v6_dst(struct sk_buff *skb, - struct net_device *dev, - struct geneve_sock *gs6, - struct flowi6 *fl6, - const struct ip_tunnel_info *info, - __be16 dport, __be16 sport) -{ - bool use_cache = ip_tunnel_dst_cache_usable(skb, info); - struct geneve_dev *geneve = netdev_priv(dev); - struct dst_entry *dst = NULL; - struct dst_cache *dst_cache; - __u8 prio; - - if (!gs6) - return ERR_PTR(-EIO); - - memset(fl6, 0, sizeof(*fl6)); - fl6->flowi6_mark = skb->mark; - fl6->flowi6_proto = IPPROTO_UDP; - fl6->daddr = info->key.u.ipv6.dst; - fl6->saddr = info->key.u.ipv6.src; - fl6->fl6_dport = dport; - fl6->fl6_sport = sport; - - prio = info->key.tos; - if ((prio == 1) && !geneve->cfg.collect_md) { - prio = ip_tunnel_get_dsfield(ip_hdr(skb), skb); - use_cache = false; - } - - fl6->flowlabel = ip6_make_flowinfo(prio, info->key.label); - dst_cache = (struct dst_cache *)&info->dst_cache; - if (use_cache) { - dst = dst_cache_get_ip6(dst_cache, &fl6->saddr); - if (dst) - return dst; - } - dst = ipv6_stub->ipv6_dst_lookup_flow(geneve->net, gs6->sock->sk, fl6, - NULL); - if (IS_ERR(dst)) { - netdev_dbg(dev, "no route to %pI6\n", &fl6->daddr); - return ERR_PTR(-ENETUNREACH); - } - if (dst->dev == dev) { /* is this necessary? */ - netdev_dbg(dev, "circular route to %pI6\n", &fl6->daddr); - dst_release(dst); - return ERR_PTR(-ELOOP); + dsfield = info->key.tos; + if (dsfield == 1 && !geneve->cfg.collect_md) { + dsfield = ip_tunnel_get_dsfield(ip_hdr(skb), skb); + *use_cache = false; } - if (use_cache) - dst_cache_set_ip6(dst_cache, dst, &fl6->saddr); - return dst; + return dsfield; } -#endif static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, struct geneve_dev *geneve, @@ -904,19 +808,28 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, struct geneve_sock *gs4 = rcu_dereference(geneve->sock4); const struct ip_tunnel_key *key = &info->key; struct rtable *rt; - struct flowi4 fl4; - __u8 full_tos; + bool use_cache; __u8 tos, ttl; __be16 df = 0; + __be32 saddr; __be16 sport; int err; if (!pskb_inet_may_pull(skb)) return -EINVAL; + if (!gs4) + return -EIO; + + use_cache = ip_tunnel_dst_cache_usable(skb, info); + tos = geneve_get_dsfield(skb, dev, info, &use_cache); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); - rt = geneve_get_v4_rt(skb, dev, gs4, &fl4, info, - geneve->cfg.info.key.tp_dst, sport, &full_tos); + + rt = udp_tunnel_dst_lookup(skb, dev, geneve->net, 0, &saddr, + &info->key, + sport, geneve->cfg.info.key.tp_dst, tos, + use_cache ? + (struct dst_cache *)&info->dst_cache : NULL); if (IS_ERR(rt)) return PTR_ERR(rt); @@ -939,8 +852,8 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, return -ENOMEM; } - unclone->key.u.ipv4.dst = fl4.saddr; - unclone->key.u.ipv4.src = fl4.daddr; + unclone->key.u.ipv4.dst = saddr; + unclone->key.u.ipv4.src = info->key.u.ipv4.dst; } if (!pskb_may_pull(skb, ETH_HLEN)) { @@ -954,13 +867,12 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, return -EMSGSIZE; } + tos = ip_tunnel_ecn_encap(tos, ip_hdr(skb), skb); if (geneve->cfg.collect_md) { - tos = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); ttl = key->ttl; df = key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0; } else { - tos = ip_tunnel_ecn_encap(full_tos, ip_hdr(skb), skb); if (geneve->cfg.ttl_inherit) ttl = ip_tunnel_get_ttl(ip_hdr(skb), skb); else @@ -988,7 +900,7 @@ static int geneve_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (unlikely(err)) return err; - udp_tunnel_xmit_skb(rt, gs4->sock->sk, skb, fl4.saddr, fl4.daddr, + udp_tunnel_xmit_skb(rt, gs4->sock->sk, skb, saddr, info->key.u.ipv4.dst, tos, ttl, df, sport, geneve->cfg.info.key.tp_dst, !net_eq(geneve->net, dev_net(geneve->dev)), !(info->key.tun_flags & TUNNEL_CSUM)); @@ -1004,7 +916,8 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, struct geneve_sock *gs6 = rcu_dereference(geneve->sock6); const struct ip_tunnel_key *key = &info->key; struct dst_entry *dst = NULL; - struct flowi6 fl6; + struct in6_addr saddr; + bool use_cache; __u8 prio, ttl; __be16 sport; int err; @@ -1012,9 +925,18 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, if (!pskb_inet_may_pull(skb)) return -EINVAL; + if (!gs6) + return -EIO; + + use_cache = ip_tunnel_dst_cache_usable(skb, info); + prio = geneve_get_dsfield(skb, dev, info, &use_cache); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); - dst = geneve_get_v6_dst(skb, dev, gs6, &fl6, info, - geneve->cfg.info.key.tp_dst, sport); + + dst = udp_tunnel6_dst_lookup(skb, dev, geneve->net, gs6->sock, 0, + &saddr, key, sport, + geneve->cfg.info.key.tp_dst, prio, + use_cache ? + (struct dst_cache *)&info->dst_cache : NULL); if (IS_ERR(dst)) return PTR_ERR(dst); @@ -1036,8 +958,8 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, return -ENOMEM; } - unclone->key.u.ipv6.dst = fl6.saddr; - unclone->key.u.ipv6.src = fl6.daddr; + unclone->key.u.ipv6.dst = saddr; + unclone->key.u.ipv6.src = info->key.u.ipv6.dst; } if (!pskb_may_pull(skb, ETH_HLEN)) { @@ -1051,12 +973,10 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, return -EMSGSIZE; } + prio = ip_tunnel_ecn_encap(prio, ip_hdr(skb), skb); if (geneve->cfg.collect_md) { - prio = ip_tunnel_ecn_encap(key->tos, ip_hdr(skb), skb); ttl = key->ttl; } else { - prio = ip_tunnel_ecn_encap(ip6_tclass(fl6.flowlabel), - ip_hdr(skb), skb); if (geneve->cfg.ttl_inherit) ttl = ip_tunnel_get_ttl(ip_hdr(skb), skb); else @@ -1069,7 +989,7 @@ static int geneve6_xmit_skb(struct sk_buff *skb, struct net_device *dev, return err; udp_tunnel6_xmit_skb(dst, gs6->sock->sk, skb, dev, - &fl6.saddr, &fl6.daddr, prio, ttl, + &saddr, &key->u.ipv6.dst, prio, ttl, info->key.label, sport, geneve->cfg.info.key.tp_dst, !(info->key.tun_flags & TUNNEL_CSUM)); return 0; @@ -1137,35 +1057,54 @@ static int geneve_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb) if (ip_tunnel_info_af(info) == AF_INET) { struct rtable *rt; - struct flowi4 fl4; - struct geneve_sock *gs4 = rcu_dereference(geneve->sock4); + bool use_cache; + __be32 saddr; + u8 tos; + + if (!gs4) + return -EIO; + + use_cache = ip_tunnel_dst_cache_usable(skb, info); + tos = geneve_get_dsfield(skb, dev, info, &use_cache); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); - rt = geneve_get_v4_rt(skb, dev, gs4, &fl4, info, - geneve->cfg.info.key.tp_dst, sport, NULL); + rt = udp_tunnel_dst_lookup(skb, dev, geneve->net, 0, &saddr, + &info->key, + sport, geneve->cfg.info.key.tp_dst, + tos, + use_cache ? &info->dst_cache : NULL); if (IS_ERR(rt)) return PTR_ERR(rt); ip_rt_put(rt); - info->key.u.ipv4.src = fl4.saddr; + info->key.u.ipv4.src = saddr; #if IS_ENABLED(CONFIG_IPV6) } else if (ip_tunnel_info_af(info) == AF_INET6) { struct dst_entry *dst; - struct flowi6 fl6; - struct geneve_sock *gs6 = rcu_dereference(geneve->sock6); + struct in6_addr saddr; + bool use_cache; + u8 prio; + + if (!gs6) + return -EIO; + + use_cache = ip_tunnel_dst_cache_usable(skb, info); + prio = geneve_get_dsfield(skb, dev, info, &use_cache); sport = udp_flow_src_port(geneve->net, skb, 1, USHRT_MAX, true); - dst = geneve_get_v6_dst(skb, dev, gs6, &fl6, info, - geneve->cfg.info.key.tp_dst, sport); + dst = udp_tunnel6_dst_lookup(skb, dev, geneve->net, gs6->sock, 0, + &saddr, &info->key, sport, + geneve->cfg.info.key.tp_dst, prio, + use_cache ? &info->dst_cache : NULL); if (IS_ERR(dst)) return PTR_ERR(dst); dst_release(dst); - info->key.u.ipv6.src = fl6.saddr; + info->key.u.ipv6.src = saddr; #endif } else { return -EINVAL; |