| 1 |
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| 2 | |
| 3 | * IPv6 IOAM implementation
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| 4 | *
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| 5 | * Author:
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| 6 | * Justin Iurman <[email protected]>
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| 7 |
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| 8 |
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| 9 | #ifndef _NET_IOAM6_H
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| 10 | #define _NET_IOAM6_H
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| 11 |
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| 12 | #include <linux/net.h>
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| 13 | #include <linux/ipv6.h>
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| 14 | #include <linux/ioam6.h>
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| 15 | #include <linux/ioam6_genl.h>
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| 16 | #include <linux/rhashtable-types.h>
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| 17 |
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| 18 | struct ioam6_namespace {
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| 19 | struct rhash_head head;
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| 20 | struct rcu_head rcu;
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| 21 |
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| 22 | struct ioam6_schema __rcu *schema;
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| 23 |
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| 24 | __be16 id;
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| 25 | __be32 data;
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| 26 | __be64 data_wide;
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| 27 | };
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| 28 |
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| 29 | struct ioam6_schema {
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| 30 | struct rhash_head head;
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| 31 | struct rcu_head rcu;
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| 32 |
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| 33 | struct ioam6_namespace __rcu *ns;
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| 34 |
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| 35 | u32 id;
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| 36 | int len;
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| 37 | __be32 hdr;
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| 38 |
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| 39 | u8 data[];
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| 40 | };
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| 41 |
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| 42 | struct ioam6_pernet_data {
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| 43 | struct mutex lock;
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| 44 | struct rhashtable namespaces;
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| 45 | struct rhashtable schemas;
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| 46 | };
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| 47 |
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| 48 | static inline struct ioam6_pernet_data *ioam6_pernet(struct net *net)
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| 49 | {
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| 50 | #if IS_ENABLED(CONFIG_IPV6)
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| 51 | return net->ipv6.ioam6_data;
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| 52 | #else
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| 53 | return NULL;
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| 54 | #endif
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| 55 | }
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| 56 |
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| 57 | struct ioam6_namespace *ioam6_namespace(struct net *net, __be16 id);
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| 58 | void ioam6_fill_trace_data(struct sk_buff *skb,
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| 59 | struct ioam6_namespace *ns,
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| 60 | struct ioam6_trace_hdr *trace,
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| 61 | bool is_input);
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| 62 |
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| 63 | u8 ioam6_trace_compute_nodelen(u32 trace_type);
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| 64 |
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| 65 | int ioam6_init(void);
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| 66 | void ioam6_exit(void);
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| 67 |
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| 68 | int ioam6_iptunnel_init(void);
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| 69 | void ioam6_iptunnel_exit(void);
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| 70 |
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| 71 | void ioam6_event(enum ioam6_event_type type, struct net *net, gfp_t gfp,
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| 72 | void *opt, unsigned int opt_len);
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| 73 |
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| 74 | #endif
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