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Move some struct defs around. This is a prep step for Vimage.A

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No real effect of this at this time.
This commit is contained in:
Julian Elischer 2008-08-25 00:33:30 +00:00
parent 867624a678
commit e0306e8be7
2 changed files with 67 additions and 67 deletions
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66
sys/netinet/tcp_syncache.c
View File

@ -108,67 +108,12 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, syncookies_only, CTLFLAG_RW,
&tcp_syncookiesonly, 0,
"Use only TCP SYN cookies");
#define SYNCOOKIE_SECRET_SIZE 8 /* dwords */
#define SYNCOOKIE_LIFETIME 16 /* seconds */
struct syncache {
TAILQ_ENTRY(syncache) sc_hash;
struct in_conninfo sc_inc; /* addresses */
int sc_rxttime; /* retransmit time */
u_int16_t sc_rxmits; /* retransmit counter */
u_int32_t sc_tsreflect; /* timestamp to reflect */
u_int32_t sc_ts; /* our timestamp to send */
u_int32_t sc_tsoff; /* ts offset w/ syncookies */
u_int32_t sc_flowlabel; /* IPv6 flowlabel */
tcp_seq sc_irs; /* seq from peer */
tcp_seq sc_iss; /* our ISS */
struct mbuf *sc_ipopts; /* source route */
u_int16_t sc_peer_mss; /* peer's MSS */
u_int16_t sc_wnd; /* advertised window */
u_int8_t sc_ip_ttl; /* IPv4 TTL */
u_int8_t sc_ip_tos; /* IPv4 TOS */
u_int8_t sc_requested_s_scale:4,
sc_requested_r_scale:4;
u_int16_t sc_flags;
#define SCF_NOOPT 0x01 /* no TCP options */
#define SCF_WINSCALE 0x02 /* negotiated window scaling */
#define SCF_TIMESTAMP 0x04 /* negotiated timestamps */
/* MSS is implicit */
#define SCF_UNREACH 0x10 /* icmp unreachable received */
#define SCF_SIGNATURE 0x20 /* send MD5 digests */
#define SCF_SACK 0x80 /* send SACK option */
#define SCF_ECN 0x100 /* send ECN setup packet */
#ifndef TCP_OFFLOAD_DISABLE
struct toe_usrreqs *sc_tu; /* TOE operations */
void *sc_toepcb; /* TOE protocol block */
#endif
#ifdef MAC
struct label *sc_label; /* MAC label reference */
#endif
struct ucred *sc_cred; /* cred cache for jail checks */
};
#ifdef TCP_OFFLOAD_DISABLE
#define TOEPCB_ISSET(sc) (0)
#else
#define TOEPCB_ISSET(sc) ((sc)->sc_toepcb != NULL)
#endif
struct syncache_head {
struct mtx sch_mtx;
TAILQ_HEAD(sch_head, syncache) sch_bucket;
struct callout sch_timer;
int sch_nextc;
u_int sch_length;
u_int sch_oddeven;
u_int32_t sch_secbits_odd[SYNCOOKIE_SECRET_SIZE];
u_int32_t sch_secbits_even[SYNCOOKIE_SECRET_SIZE];
u_int sch_reseed; /* time_uptime, seconds */
};
static void syncache_drop(struct syncache *, struct syncache_head *);
static void syncache_free(struct syncache *);
static void syncache_insert(struct syncache *, struct syncache_head *);
@ -197,17 +142,6 @@ static struct syncache
#define TCP_SYNCACHE_HASHSIZE 512
#define TCP_SYNCACHE_BUCKETLIMIT 30
struct tcp_syncache {
struct syncache_head *hashbase;
uma_zone_t zone;
u_int hashsize;
u_int hashmask;
u_int bucket_limit;
u_int cache_count; /* XXX: unprotected */
u_int cache_limit;
u_int rexmt_limit;
u_int hash_secret;
};
static struct tcp_syncache tcp_syncache;
SYSCTL_NODE(_net_inet_tcp, OID_AUTO, syncache, CTLFLAG_RW, 0, "TCP SYN cache");

68
sys/netinet/tcp_syncache.h
View File

@ -51,5 +51,71 @@ void syncache_badack(struct in_conninfo *);
int syncache_pcbcount(void);
int syncache_pcblist(struct sysctl_req *req, int max_pcbs, int *pcbs_exported);
struct syncache {
TAILQ_ENTRY(syncache) sc_hash;
struct in_conninfo sc_inc; /* addresses */
int sc_rxttime; /* retransmit time */
u_int16_t sc_rxmits; /* retransmit counter */
u_int32_t sc_tsreflect; /* timestamp to reflect */
u_int32_t sc_ts; /* our timestamp to send */
u_int32_t sc_tsoff; /* ts offset w/ syncookies */
u_int32_t sc_flowlabel; /* IPv6 flowlabel */
tcp_seq sc_irs; /* seq from peer */
tcp_seq sc_iss; /* our ISS */
struct mbuf *sc_ipopts; /* source route */
u_int16_t sc_peer_mss; /* peer's MSS */
u_int16_t sc_wnd; /* advertised window */
u_int8_t sc_ip_ttl; /* IPv4 TTL */
u_int8_t sc_ip_tos; /* IPv4 TOS */
u_int8_t sc_requested_s_scale:4,
sc_requested_r_scale:4;
u_int16_t sc_flags;
#define SCF_NOOPT 0x01 /* no TCP options */
#define SCF_WINSCALE 0x02 /* negotiated window scaling */
#define SCF_TIMESTAMP 0x04 /* negotiated timestamps */
/* MSS is implicit */
#define SCF_UNREACH 0x10 /* icmp unreachable received */
#define SCF_SIGNATURE 0x20 /* send MD5 digests */
#define SCF_SACK 0x80 /* send SACK option */
#define SCF_ECN 0x100 /* send ECN setup packet */
#ifndef TCP_OFFLOAD_DISABLE
struct toe_usrreqs *sc_tu; /* TOE operations */
void *sc_toepcb; /* TOE protocol block */
#endif
#ifdef MAC
struct label *sc_label; /* MAC label reference */
#endif
struct ucred *sc_cred; /* cred cache for jail checks */
};
#define SYNCOOKIE_SECRET_SIZE 8 /* dwords */
#define SYNCOOKIE_LIFETIME 16 /* seconds */
struct syncache_head {
struct mtx sch_mtx;
TAILQ_HEAD(sch_head, syncache) sch_bucket;
struct callout sch_timer;
int sch_nextc;
u_int sch_length;
u_int sch_oddeven;
u_int32_t sch_secbits_odd[SYNCOOKIE_SECRET_SIZE];
u_int32_t sch_secbits_even[SYNCOOKIE_SECRET_SIZE];
u_int sch_reseed; /* time_uptime, seconds */
};
struct tcp_syncache {
struct syncache_head *hashbase;
uma_zone_t zone;
u_int hashsize;
u_int hashmask;
u_int bucket_limit;
u_int cache_count; /* XXX: unprotected */
u_int cache_limit;
u_int rexmt_limit;
u_int hash_secret;
};
#endif /* _KERNEL */
#endif /* _NETINET_TCP_SYNCACHE_H_ */
#endif /* !_NETINET_TCP_SYNCACHE_H_ */