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Release 4.12 include/net/dst_metadata.h

Directory: include/net
#ifndef __NET_DST_METADATA_H

#define __NET_DST_METADATA_H 1

#include <linux/skbuff.h>
#include <net/ip_tunnels.h>
#include <net/dst.h>


struct metadata_dst {
	
struct dst_entry		dst;
	union {
		
struct ip_tunnel_info	tun_info;
	
} u;
};


static inline struct metadata_dst *skb_metadata_dst(struct sk_buff *skb) { struct metadata_dst *md_dst = (struct metadata_dst *) skb_dst(skb); if (md_dst && md_dst->dst.flags & DST_METADATA) return md_dst; return NULL; }

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Thomas Graf47100.00%1100.00%
Total47100.00%1100.00%


static inline struct ip_tunnel_info *skb_tunnel_info(struct sk_buff *skb) { struct metadata_dst *md_dst = skb_metadata_dst(skb); struct dst_entry *dst; if (md_dst) return &md_dst->u.tun_info; dst = skb_dst(skb); if (dst && dst->lwtstate) return lwt_tun_info(dst->lwtstate); return NULL; }

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Thomas Graf5988.06%266.67%
Jiri Benc811.94%133.33%
Total67100.00%3100.00%


static inline bool skb_valid_dst(const struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); return dst && !(dst->flags & DST_METADATA); }

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Thomas Graf35100.00%1100.00%
Total35100.00%1100.00%


static inline int skb_metadata_dst_cmp(const struct sk_buff *skb_a, const struct sk_buff *skb_b) { const struct metadata_dst *a, *b; if (!(skb_a->_skb_refdst | skb_b->_skb_refdst)) return 0; a = (const struct metadata_dst *) skb_dst(skb_a); b = (const struct metadata_dst *) skb_dst(skb_b); if (!a != !b || a->u.tun_info.options_len != b->u.tun_info.options_len) return 1; return memcmp(&a->u.tun_info, &b->u.tun_info, sizeof(a->u.tun_info) + a->u.tun_info.options_len); }

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Jesse Gross132100.00%1100.00%
Total132100.00%1100.00%

void metadata_dst_free(struct metadata_dst *); struct metadata_dst *metadata_dst_alloc(u8 optslen, gfp_t flags); struct metadata_dst __percpu *metadata_dst_alloc_percpu(u8 optslen, gfp_t flags);
static inline struct metadata_dst *tun_rx_dst(int md_size) { struct metadata_dst *tun_dst; tun_dst = metadata_dst_alloc(md_size, GFP_ATOMIC); if (!tun_dst) return NULL; tun_dst->u.tun_info.options_len = 0; tun_dst->u.tun_info.mode = 0; return tun_dst; }

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Pravin B Shelar57100.00%2100.00%
Total57100.00%2100.00%


static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb) { struct metadata_dst *md_dst = skb_metadata_dst(skb); int md_size; struct metadata_dst *new_md; if (!md_dst) return ERR_PTR(-EINVAL); md_size = md_dst->u.tun_info.options_len; new_md = metadata_dst_alloc(md_size, GFP_ATOMIC); if (!new_md) return ERR_PTR(-ENOMEM); memcpy(&new_md->u.tun_info, &md_dst->u.tun_info, sizeof(struct ip_tunnel_info) + md_size); skb_dst_drop(skb); dst_hold(&new_md->dst); skb_dst_set(skb, &new_md->dst); return new_md; }

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Pravin B Shelar11692.06%150.00%
Tobias Klauser107.94%150.00%
Total126100.00%2100.00%


static inline struct ip_tunnel_info *skb_tunnel_info_unclone(struct sk_buff *skb) { struct metadata_dst *dst; dst = tun_dst_unclone(skb); if (IS_ERR(dst)) return NULL; return &dst->u.tun_info; }

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Pravin B Shelar44100.00%1100.00%
Total44100.00%1100.00%


static inline struct metadata_dst *__ip_tun_set_dst(__be32 saddr, __be32 daddr, __u8 tos, __u8 ttl, __be16 tp_dst, __be16 flags, __be64 tunnel_id, int md_size) { struct metadata_dst *tun_dst; tun_dst = tun_rx_dst(md_size); if (!tun_dst) return NULL; ip_tunnel_key_init(&tun_dst->u.tun_info.key, saddr, daddr, tos, ttl, 0, 0, tp_dst, tunnel_id, flags); return tun_dst; }

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Pravin B Shelar6980.23%240.00%
Amir Vadai1213.95%120.00%
Hadar Hen Zion44.65%120.00%
Daniel Borkmann11.16%120.00%
Total86100.00%5100.00%


static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb, __be16 flags, __be64 tunnel_id, int md_size) { const struct iphdr *iph = ip_hdr(skb); return __ip_tun_set_dst(iph->saddr, iph->daddr, iph->tos, iph->ttl, 0, flags, tunnel_id, md_size); }

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PersonTokensPropCommitsCommitProp
Amir Vadai3150.00%133.33%
Pravin B Shelar2946.77%133.33%
Hadar Hen Zion23.23%133.33%
Total62100.00%3100.00%


static inline struct metadata_dst *__ipv6_tun_set_dst(const struct in6_addr *saddr, const struct in6_addr *daddr, __u8 tos, __u8 ttl, __be16 tp_dst, __be32 label, __be16 flags, __be64 tunnel_id, int md_size) { struct metadata_dst *tun_dst; struct ip_tunnel_info *info; tun_dst = tun_rx_dst(md_size); if (!tun_dst) return NULL; info = &tun_dst->u.tun_info; info->mode = IP_TUNNEL_INFO_IPV6; info->key.tun_flags = flags; info->key.tun_id = tunnel_id; info->key.tp_src = 0; info->key.tp_dst = tp_dst; info->key.u.ipv6.src = *saddr; info->key.u.ipv6.dst = *daddr; info->key.tos = tos; info->key.ttl = ttl; info->key.label = label; return tun_dst; }

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PersonTokensPropCommitsCommitProp
Pravin B Shelar10965.27%240.00%
Amir Vadai4828.74%120.00%
Daniel Borkmann63.59%120.00%
Hadar Hen Zion42.40%120.00%
Total167100.00%5100.00%


static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb, __be16 flags, __be64 tunnel_id, int md_size) { const struct ipv6hdr *ip6h = ipv6_hdr(skb); return __ipv6_tun_set_dst(&ip6h->saddr, &ip6h->daddr, ipv6_get_dsfield(ip6h), ip6h->hop_limit, 0, ip6_flowlabel(ip6h), flags, tunnel_id, md_size); }

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PersonTokensPropCommitsCommitProp
Amir Vadai6288.57%125.00%
Daniel Borkmann45.71%125.00%
Pravin B Shelar22.86%125.00%
Hadar Hen Zion22.86%125.00%
Total70100.00%4100.00%

#endif /* __NET_DST_METADATA_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Pravin B Shelar42644.24%321.43%
Thomas Graf19019.73%321.43%
Amir Vadai15315.89%17.14%
Jesse Gross13213.71%17.14%
Alexei Starovoitov131.35%17.14%
Hadar Hen Zion121.25%17.14%
Daniel Borkmann111.14%17.14%
Tobias Klauser101.04%17.14%
Paolo Abeni80.83%17.14%
Jiri Benc80.83%17.14%
Total963100.00%14100.00%
Directory: include/net
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